My Weaknesses Flashcards

Question

What is SATA 2 speed?

Answer 1

Coaxial cable type cable RG-59 connector

Answer 2

3 or 4 pin connectors. Providing power to the motherboard, fans, floppy disk drive, CD/DVD drive, video card, some older hard drive models, and more

Answer 3

NVMe or Non-Volatile Memory Express is a super-fast way to access non-volatile memory. It can be around 2-7x faster than SATA SSDs. A SSD. NVMe is commonly used for solid-state storage, main memory, cache memory or backup memory. Expensive.

Answer 4

A serial expansion bus standard for connecting a computer to one or more peripheral devices. Graphics cards etc.

Answer 5

M.2 is a form factor for SSDs (solid-state drives) Thin gaming laptops (opens in new tab)are increasingly using M.2 SSDs because they take up less room than 2.5-inch SSDs or hard drives. M.2 SSDs go up to 2TB in storage size. To use you need special motherboard.

Answer 6

M.2 is a form factor for SSDs (solid-state drives) Thin gaming laptops (opens in new tab)are increasingly using M.2 SSDs because they take up less room than 2.5-inch SSDs or hard drives. M.2 SSDs go up to 2TB in storage size. To use you need special motherboard.

Answer 7

The TPM is a cryptographic module that enhances computer security and privacy.

Answer 8

ARM chips are 32-bit and 64-bit RISC-based CPUs that are known for their low cost but primarily for their low power requirements (see RISC). Popular is small devices like phones because ARM uses low power.

Answer 9

A modular power supply is a type of unit that gets its name from the fact that it has several removable cables. The "modules" in question are the various parts of the PSU that can be added or removed as needed.

Answer 10

An electrical system that has been designed to feature two or more of the same power supply.

Answer 11

Parallel – It was the most popular way of communicating with PC. It consists of a male DB-25 connector that connects to PC and a male 36-pin Centronics connector that connects to the printer. Most of the cables were less than 10 feet long. Universal Serial Bus (USB) – It is the most popular interface today. It gives a higher transfer rate and it is automatically recognized on PC. Network – It allows printers to have a network interface card (NIC) and ROM-based software to communicate with network attached servers and PC. It can be wired or wireless network card. Infrared – Many laser printers have infrared transmitter/receivers to communicate with the infrared ports on many handhelds and PDA so that user of a PDA, handheld, or laptop can print to that printer by pointing the device at the printer and initiating the print process. SCSI – Few printers use SCSI interfaces. It has benefit of multiple devices on single SCSI connection, simple to implement and large throughput. But have now become obsolete. IEEE 1394 Firewire – Apple developed it and this interface supports throughput of 800MBps. High end graphics and typesetting use it. Wireless – It is of many different kinds as it uses IEEE 802.11 wireless networking or Bluetooth so that it is possible for people to roam around an office and still able to print. Printers have built-in 802.11 interfaces or Bluetooth capability. The data to print is transmitted wirelessly through the air using radio waves and is received by the device.

Answer 12

Processing. Charging. Exposing. Developing. Transferring. Fusing. Cleaning.

Answer 13

The printer’s laser projects your print onto a drum. A drum then uses static electricity to attract the dry toner to the drum’s cylinder. The drum then rolls the toner onto the paper to create your print. The toner powder is melted and pressed onto the paper with heat from the fuser as it goes through a set of rollers. Your print comes out of the printer.

Answer 14

The printers laser beams your print onto a metal drum. The drum uses static electricity to attract powdered toner to the drums cylinder. The drum rolls the toner onto the paper in the form of your print. The toner is melted & pressed onto the paper by heat from a fuser as it passes through its rollers. Volts +5 DC and +24 DC.

Answer 15

In contrast to laser printing technology, inkjet printers use pigmented liquid ink which is directed into the print head, this then sprays droplets of ink through tiny nozzles onto the page. These microscopic droplets are precisely arranged to recreate images or text.

Answer 16

SC, ST, LC.

Answer 17

A home automation wireless protocol.

Answer 18

Desktop as a service. Often paired with VDI, virtual desktop interfaces. Desktop as a Service (DaaS) is a cloud computing offering where a service provider delivers virtual desktops to end users over the Internet, licensed.

Answer 19

Accelerated Graphics Port (AGP) is a parallel expansion card standard, designed for attaching a video card to a computer system to assist in the acceleration of 3D computer graphics.

Answer 20

Refresh rate is defined as how many times your monitor (or whatever other display) can refresh the image on-screen. FPS, or frames per second, is actually about how many frames your graphics card can send out as frames to the display every second.

Answer 21

Ghosting is often caused by a malfunctioning imaging drum unit. When a drum unit comes to the end of its useable life cycle, it may not discharge properly, leaving behind faint traces of the previous printing job.

Answer 22

::1 is the loopback address in IPv6. Think of it as the IPv6 version of 127.0. 0.1 .

Answer 23

A double/duplex pointy connector, both connected together like lovers.

Answer 24

A single lonely pointy connector.

Answer 25

Square. Stick and click, short pointy connector.

Answer 26

SMB provides client applications with a secure and controlled method for opening, reading, moving, creating and updating files on remote servers. Port 445.

Answer 27

Coaxial. Medium-length connection cables. Analog CCTV applications and other audio video applications.

Answer 28

Coaxial. RG11 cables are thick cables that are used for special and long-distance signalling.

Answer 29

Address Resolution Protocol (ARP) is a protocol or procedure that connects an ever-changing Internet Protocol (IP) address to a fixed physical machine address, also known as a media access control (MAC) address, in a local-area network (LAN).

Answer 30

MX mail refers to the Mail Exchange record, which specifies the mail server(s) responsible for receiving emails for a domain. It tells email servers where to send emails for a specific domain.

Answer 31

Port flapping is when a network port rapidly switches between being connected and disconnected. It can cause network disruptions and connectivity problems. Troubleshooting involves checking cables, and configurations, and resolving any underlying issues causing the instability.

Answer 32

APIPA (Automatic Private IP Addressing) is a feature that automatically assigns a unique IP address to a device when it can't connect to a DHCP server. It helps devices communicate on a local network without a central IP address assignment. 169.254.0.0 to 169.254.255.255 APIPA is primarily used in small local networks, such as home networks or small office environments, where a DHCP server may not be available or properly configured. It provides a fallback mechanism for devices to communicate within the local network even without a centrally assigned IP address.

Answer 33

IaaS (Infrastructure as a Service) is renting virtualized computing resources, SaaS (Software as a Service) is accessing software applications over the internet, DaaS (Desktop as a Service) is accessing virtual desktop environments, and PaaS (Platform as a Service) is a platform for developing and deploying applications.

Answer 34

EMI (Electromagnetic Interference) is disruption caused by electromagnetic radiation from external sources that affects electronic devices. RFI (Radio Frequency Interference) is interference caused by radio frequency signals from sources like radios, cell phones, or wireless networks, affecting the performance of electronic devices.

Answer 35

IMAP4 stores emails on the mail server and allows you to access and manage them from multiple devices, while POP3 downloads emails to your device and typically deletes them from the server. IMAP4 provides more advanced email management options and offline access to previously synchronized emails, while POP3 is more limited in terms of management and requires an active internet connection to download new emails.

Answer 36

The SMB port, also known as Port 445, is a network port used for the Server Message Block (SMB) protocol. It is primarily used for file sharing and printer sharing between computers on a network, particularly in Windows environments.

Answer 37

161/162. SNMP is a protocol for managing and monitoring network devices and systems. It allows network administrators to collect information, monitor network performance, and manage devices remotely. With SNMP, administrators can monitor various aspects of network devices, such as CPU usage, memory utilization, network traffic, and more.

Answer 38

Port 20 is used for file transfers. Port 21 is used for the connection.

Answer 39

1 to 127. 0.0. 0.0 to 127.255. 255.255. Large networks.

Answer 40

128 to 191. 128.0. 0.0 to 191.255. 255.255. This class is for medium networks and has 16 bits for networks and 16 bits for hosts.

Answer 41

192-223. Very small LANs and networks.

Answer 42

RAID 0: Striping - Data is striped across multiple drives without redundancy. It enhances performance and increases storage capacity but offers no data protection. 2+ drives.

Answer 43

RAID 1: Mirroring - Data is duplicated across two drives for redundancy. Provides data protection but halves the total storage capacity. 2 drives.

Answer 44

RAID 5: Striping with Parity - Data is striped across multiple drives, with parity information distributed among the drives. Offers both performance and data protection. 3 drives.

Answer 45

RAID 10: Mirroring and Striping - Data is mirrored across pairs of drives and then striped across those mirrored pairs. Combines the benefits of RAID 1 and RAID 0 for both performance and redundancy. Requires a minimum of four drives. 4+ drives.

Answer 46

Apples. Green-White, Green, Orange-White, Blue, Blue-White, Orange, Brown-White, Brown.

Answer 47

Banana. Orange-White, Orange, Green-White, Blue, Blue-White, Green, Brown-White, Brown.

Answer 48

DKIM (DomainKeys Identified Mail): Email authentication method that adds a digital signature to outgoing messages. It verifies the integrity and authenticity of the email, ensuring it hasn't been tampered with during transit.

Answer 49

SPF (Sender Policy Framework): Email authentication framework that specifies authorized servers to send emails on behalf of a domain. It helps prevent email spoofing and ensures that incoming messages are from legitimate sources.

Answer 50

DMARC (Domain-based Message Authentication, Reporting, and Conformance): Email authentication protocol that combines DKIM and SPF. It allows domain owners to set policies for email handling, including how to handle failed authentication, and provides reporting on email activity for better visibility and control.

Answer 51

The fuser unit or fuser assembly, is a critical component of your laser printer. Using pressure and heat, it fuses the toner powder onto the page to create a print, and without out it, your printer cannot operate.

Answer 52

A transfer roller is a component in some laser printers and copiers that helps to transfer toner or ink from the imaging drum to the paper.

Answer 53

Laser Diode: Emits a laser beam to create a charged image on the drum. Drum: Receives the laser image and transfers it onto paper using static electricity. Toner Cartridge: Contains fine powder (toner) used to create the image on the drum. Fuser Assembly: Heats and melts the toner onto the paper, ensuring it adheres permanently. Paper Tray: Holds the paper for printing. Control Panel: Allows users to manage print settings and monitor the printer's status. Interface Ports: Connect the printer to a computer or network.

Answer 54

Print Head: Contains tiny nozzles that spray ink droplets onto the paper. Ink Cartridges: Hold liquid ink of different colors (cyan, magenta, yellow, black). Paper Tray: Stores paper for printing. Control Panel: Provides access to printer settings and status information. Interface Ports: Enable connection to a computer or network. Carriage and Belt: Move the print head across the paper for precise ink deposition. Platen: Holds the paper in place during printing.

Answer 55

Use inkjet technology to spray tiny droplets of ink onto paper. Great for printing colourful images and photographs. Slower print speeds compared to laser printers. Use ink cartridges that can be replaced individually. Generally have a lower upfront cost but a higher cost per page. Offer the ability to print on various media types, including glossy paper and fabric. Suitable for home use or small-scale printing needs with a focus on colour printing.

Answer 56

Use laser technology to produce high-quality prints. Ideal for text-heavy documents, such as reports or contracts. Offer fast print speeds, making them efficient for large print jobs. Toner cartridges are used instead of ink cartridges. More expensive upfront cost but generally lower cost per page. Produce sharper and more precise text and graphics. Suitable for office environments or high-volume printing needs.

Answer 57

Uses heat to apply to sensitive paper. Very fast, but prints fade easily. Thermal printers use heat to print on special thermal paper. They are commonly used for printing receipts, tickets, labels, and in various industries like retail, logistics, and healthcare. Thermal printers offer fast printing and low maintenance but require special thermal paper and can be sensitive to fading and environmental factors.

Answer 58

Ribbons are used, like typewriters. Good for multipart forms. Uses physical force, unlike thermal which uses heat. Prints low quality and is noisy. Impact printers use physical impact to create printed output. They are commonly used for printing receipts, forms, and financial documents. These printers are ideal for creating multiple copies using carbon paper and are commonly found in retail, banking, and other industries that require multipart or impact-resistant printing.

Answer 59

AMD. AMD-V, short for AMD Virtualization, is a technology developed by AMD (Advanced Micro Devices) that provides hardware-assisted virtualization capabilities for x86-based processors. It allows a computer system to run multiple operating systems or virtual machines (VMs) simultaneously, with each VM operating independently. AMD-V enhances virtualization performance and security by providing direct hardware support for virtualization tasks, such as memory management, input/output (I/O) operations, and device virtualization.

Answer 60

Microsoft. Hyper-V is a virtualization platform developed by Microsoft. It is available on Windows operating systems and utilizes the underlying hardware virtualization capabilities, such as VT-x or AMD-V, to create and manage virtual machines. Hyper-V enables users to run multiple operating systems and applications on a single physical machine, providing benefits like increased resource utilization and isolation between virtual machines. It also offers advanced features like live migration and virtual networking for efficient virtualization management.

Answer 61

Intel. VT-x, or Intel Virtualization Technology for x86, is a technology developed by Intel that provides hardware-assisted virtualization capabilities. It allows x86-based processors to efficiently run multiple virtual machines simultaneously. VT-x improves virtualization performance by offloading virtualization tasks to dedicated hardware, enabling better isolation and management of virtual machines.

Answer 62

VM escaping, also known as virtual machine escape, refers to a security vulnerability where an attacker gains unauthorized access to the underlying host system from within a virtual machine (VM) environment. Essentially, it involves breaking out of the virtualized environment and compromising the host system. To prevent: Secure the host system. Update virtualization software. Isolate and segment networks. Disable unused features. Implement intrusion detection/prevention systems. Regularly audit and monitor. Employ guest OS security measures.

Answer 63

VM sprawl refers to the uncontrolled proliferation of virtual machines (VMs) within a virtualized environment. It occurs when VMs are created without proper planning, monitoring, or management, leading to an excessive number of VMs that can strain system resources and impact performance. To prevent VM sprawl: Establish VM lifecycle policies. Monitor resource utilization. Implement automated monitoring and reporting tools. Conduct regular VM audits and cleanups. Educate users about VM provisioning guidelines. Implement approval processes for VM creation. Consider resource optimization techniques, such as VM consolidation or resource pooling.

Answer 64

Hypervisors are software that allows multiple operating systems to run on one computer. There are two types: Type 1 Hypervisor: Installs directly on the computer's hardware. Examples include VMware ESXi and Microsoft Hyper-V. They offer better performance and security but are more complex to set up. Type 2 Hypervisor: Installs on top of an existing operating system. Examples include VMware Workstation and Oracle VirtualBox. They are easier to use but have slightly lower performance. Remember: Type 1 is like a direct connection to hardware, faster but harder to set up. Type 2 is like an extra layer on top, easier but slightly slower.

Answer 65

CPU HAV (Hardware-Assisted Virtualization) enhancements, also known as CPU virtualization extensions or hardware virtualization support, are specific features built into modern CPUs to improve the performance and efficiency of virtualization technologies. They include Intel VT-x and AMD-V technologies, providing direct hardware support for virtualization.

Answer 66

Measured service refers to the practice of monitoring and quantifying resource usage to determine accurate billing or pricing. It involves tracking and recording usage data to ensure customers are charged based on their actual consumption.

Answer 67

Metered service is a pricing model where the cost of a service is based on the amount or usage of a specific resource. Customers are billed according to the measured consumption, allowing for more precise and flexible pricing.

Answer 68

A POST card is a hardware device used to diagnose hardware issues during a computer's startup process. It plugs into the motherboard and displays error codes or beeps to indicate specific problems, aiding in troubleshooting.

Answer 69

DVI-I and DVI-A

Answer 70

The RG-6 is primarily used for cable and satellite signal transmission for residential or commercial installations. This coax cable is thin and easy to bend for wall or ceiling installations and remains the preferred choice to relay cable television signals.

Answer 71

They are compatible with RG-59/RG-6 cables and are designed to support a wide variety of applications ranging from CCTV to HDTV systems.

Answer 72

SRAM (Static Random Access Memory) is a type of computer memory that stores data in a static state, meaning it doesn't require constant refreshing to retain information. It is faster and more expensive than DRAM (Dynamic Random Access Memory) but consumes less power. SRAM is commonly used in cache memory and as registers in computer systems for faster access to frequently used data. The most significant difference between SRAM and DRAM is that SRAM is made up of flip-flops (transistor based circuit to store data bits), while DRAM is made up of transistors and capacitors. SRAM is used in specialized applications such as cache memory of computer systems.

Answer 73

WPA2 or 3.

Answer 74

Software and OS issues are one of the most common causes of computers with intermittent freezing problems. If you recently installed a new software program, try uninstalling it to see if the problem goes away.

Answer 75

Twisted nematic. TN screens: Pros: Fast response time, high refresh rates, cost-effective, widely available. Cons: Poor viewing angles, limited color reproduction.

Answer 76

IPS (In-Plane Switching) screens: Pros: Wide viewing angles, accurate color reproduction, good color consistency, better visual quality and color accuracy compared to TN screens. Cons: Higher response times compared to TN screens, generally higher cost compared to TN screens.

Answer 77

VA (Vertical Alignment) screens: Pros: Good contrast ratio, deep black levels, better colour reproduction compared to TN screens, wide viewing angles. Cons: Slower response times compared to TN screens, the potential for motion blur in fast-paced content, and limited availability compared to TN and IPS screens.

Answer 78

OLED (Organic Light-Emitting Diode) screens: Pros: Excellent contrast ratio, deep black levels, vibrant colours, wide viewing angles, and fast response times. Cons: Risk of burn-in with static images, the higher cost compared to other screen types, and the potential for colour shifting over time.

Answer 79

WWAN stands for Wireless Wide Area Network. It is a wireless communication network that provides internet connectivity over a large geographical area using cellular technology. It allows devices to access data services in areas covered by the cellular network infrastructure, enabling users to stay connected while on the move. WWAN typically requires a cellular card or module installed in a device to establish a connection with the cellular network. This card allows the device to communicate with the network, access data services, and transmit/receive data over the wireless wide area network.

Answer 80

Twisted nematic. Low angles. Low colour quality. Fast response.

Answer 81

Vertical alignment. High contrast. Good angles. Good colours.

Answer 82

Organic light-emitting diode. No backlight. Lower light than LCD. Better contrast than LCD.

Answer 83

Sends emails from clients. Sends emails between servers.

Answer 84

Password and login authentication. Remote login. Not secure.

Answer 85

20 sends files. 21 makes connections.

Answer 86

IMAP4 allows multiple devices to sync email.

Answer 87

Telephone wires. Dedicated bandwidth. Twisted pair.

Answer 88

Shared bandwidth. Coaxial. TV signals.

Answer 89

Switches receive a frame from the source device and quickly forward it toward the destination device.

Answer 90

Routers help transmit packets to their destinations by charting a path through the sea of interconnected networking devices using different network topologies. Routers are intelligent devices, and they store information about the networks they're connected to.

Answer 91

Voice and video traffic. Live streaming. Online gaming.

Answer 92

Media streaming. Websites. Emails. Secure shell.

Answer 93

Single strand of optical fiber Point-to-point communication Max length can reach tens of kilometers Data transmission at high speeds (e.g., up to several terabits per second) Generally less expensive compared to multi-fiber cables Used in telecommunications, data centers, and networks

Answer 94

Multiple strands of optical fiber Parallel communication Max length can be one MILE Data transmission at high speeds (e.g., up to several terabits per second) Generally more expensive compared to single fiber cables Used in backbone networks, data centers, distribution frames

Answer 95

Port 427 is assigned to the Service Location Protocol (SLP), which facilitates service discovery in networks. It uses UDP for communication between clients and service agents.

Answer 96

Drum issue.

Answer 97

Power supply issue.

Answer 98

Network activity.

Answer 99

1. Check the boot order. 2. Check for disconnected or faulty drives. 3. Check for bootable media. 4. Repair the Master Boot Record (MBR) or Boot Configuration Data (BCD): Use your operating system's installation media or recovery tools to repair the MBR or BCD. This can help fix any potential issues with the boot process.

Answer 100

Hyperthreading is a technology that allows a single CPU core to handle multiple tasks simultaneously, improving overall performance and efficiency.

Answer 101

For IPv4, it ranges from 0.0.0.0 to 255.255.255.255

Answer 102

10.0.0.0 to 10.255.255.255 (10.0.0.0/8) 172.16.0.0 to 172.31.255.255 (172.16.0.0/12) 192.168.0.0 to 192.168.255.255 (192.168.0.0/16)

Answer 103

Zigbee is a low-power wireless communication protocol used for short-range networking in applications like home automation and IoT. It operates on 2.4 GHz, uses mesh networking, and is known for its low energy consumption and secure communication.

Answer 104

169.254.0.0 to 169.254.255.255 (169.254.0.0/16)

Answer 105

SNMP is a network management protocol for monitoring and managing network devices. It uses port 161 for receiving requests and port 162 for receiving notifications.

Answer 106

IEEE 1394 is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer. To connect personal computers, audio and video devices, and other professional and consumer electronics.

Answer 107

20 and 40gbps.

Answer 108

The parity bit check is a network method designed to detect errors and check the integrity of the data received at the receiver side by the sender side. The parity check method adds a bit to the original data for checking errors at the receiver end.

Answer 109

SATA I 1.5 Gb/sec 150 MB/sec SATA II 3 Gb/sec 300 MB/sec SATA III 6 Gb/sec 600 MB/sec

Answer 110

USB 1.0/Low-Speed: 1.5 Megabits per second (Mbps) USB 1.1/Full-Speed: 12 Mbps. USB 2.0/Hi-Speed: 480 Mbps. USB 3.0/SuperSpeed: 5 Gbps. USB 3.1/SuperSpeed: 10 Gbps.

Answer 111

Microsoft Management Console is a component of Microsoft Windows that provides system administrators and advanced users an interface for configuring and monitoring the system. Can force the restart of a device and OS.

Answer 112

Trusted Platform Module is an international standard for a secure cryptoprocessor, a dedicated microcontroller designed to secure hardware through integrated cryptographic keys.

Answer 113

A mesh network is a local area network topology in which the infrastructure nodes connect directly, dynamically and non-hierarchically to as many other nodes as possible and cooperate with one another to efficiently route data to and from clients.

Answer 114

Cooperative multitasking is a technique where two or more software applications will share the same resources of a common host processor. This method will queue tasks and attempt to allocate resources between them periodically.

Answer 115

Connector is like an L.

Answer 116

The most common types of coaxial cable for video are RG-59 and RG-6. Of these, RG-59 is the industry standard cable, whereas RG-6 is better for digital video signals.

Answer 117

Laser. 100km.

Answer 118

For video only. DB-15. Blue.

Answer 119

A single-link DVI, regardless of whether it's a DVI-I or a DVI-D, will support a maximum bandwidth of 4.59 Gbps. Dual-link has twice the bandwidth of a single-link at 9.9 GBps.

Answer 120

A coaxial RF connector is commonly used for "over the air" terrestrial television, cable television and universally for satellite television and cable modems, usually with RG-6 cable or with RG-59 cable.

Answer 121

A hardware security module is a physical computing device that safeguards and manages secrets, and performs encryption and decryption functions for digital signatures, strong authentication and other cryptographic functions.

Answer 122

Supervisor password is the one that prevents unauthorized access to the BIOS Setup Utility.

Answer 123

A KVM switch is a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mice.

Answer 124

Hyper-threading is Intel's proprietary simultaneous multithreading implementation used to improve parallelization of computations performed on x86 microprocessors.

Answer 125

A service set identifier (SSID) is a sequence of characters that uniquely names a Wi-Fi network. An SSID is sometimes referred to as a network name.

Answer 126

It's a way to map multiple private addresses inside a local network to a public IP address before transferring the information onto the internet. Organizations that want multiple devices to employ a single IP address use NAT, as do most home routers. A Network Address Translation (NAT) is the process of mapping an internet protocol (IP) address to another by changing the header of IP packets while in transit via a router. This helps to improve security and decrease the number of IP addresses an organization needs.

Answer 127

Impact printers.

Answer 128

During printing, the corona wire is charged with electricity and draws the toner off the drum to the paper. When the corona wire is charged, it gives the drum a positive static charge then the drum transfers the charge to the paper that in turn attracts the toner to the paper.

Answer 129

A common thin client definition is a computer that uses resources housed inside a central server as opposed to a hard drive. A thin client connects to a server-based environment that hosts the majority of applications, memory, and sensitive data the user needs.

Answer 130

USA. UK mobiles use the GSM (Global System for Mobile Communications) standard.

Answer 131

389. Lightweight directory access protocol (LDAP) is a protocol that helps users find data about organizations, persons, and more. LDAP has two main goals: to store data in the LDAP directory and authenticate users to access the directory.

Answer 132

20 and 40 GB.

Answer 133

The facility code is an added layer of security built within an access control system.

Answer 134

An AAAA record type is a foundational DNS record when IPv6 addresses are used. AAAA records are assigned the IPv6 address for a destination which makes communication between the source and destination possible.

Answer 135

An intrusion prevention system (IPS) is a network security tool (which can be a hardware device or software) that continuously monitors a network for malicious activity and takes action to prevent it, including reporting, blocking, or dropping it, when it does occur.

Answer 136

For finding electrical cables such as internet cables, phone lines, speaker wires, and ethernet wires in a house or building. They allow you to find cables by tracing electrical signals back to their sources.

Answer 137

A DMZ or demilitarized zone is a perimeter network that protects and adds an extra layer of security to an organization's internal local-area network from untrusted traffic.

Answer 138

( Range: 10.0. 0.0 – 10.255. 255.255 ) ( Range: 172.16. 0.0 – 172.31. 255.255 ) ( Range: 192.168. 0.0 – 192.168. 255.255 ).

Answer 139

Advantages of RAID 0: RAID 0 offers great performance, both in read and write operations. There is no overhead caused by parity controls. All storage capacity is used, and there is no overhead. The technology is easy to implement. Disadvantages of RAID 0: RAID 0 is not fault-tolerant. If one drive fails, all data in the RAID 0 array are lost. It should not be used for mission-critical systems.

Answer 140

Advantages of RAID 1: RAID 1 offers excellent read speed and a write speed that is comparable to that of a single drive. In case a drive fails, data do not have to be rebuilt, they just have to be copied to the replacement drive. RAID 1 is a very simple technology. Disadvantages of RAID 1: The main disadvantage is that the effective storage capacity is only half of the total drive capacity because all data get written twice. Software RAID 1 solution do not always allow a hot swap of a failed drive. That means the failed drive can only be replaced after powering down the computer it is attached to. This may not be acceptable for servers that are used simultaneously by many people. Such systems typically use hardware controllers that do support hot swapping.

Answer 141

Advantages of RAID 5: Read data transactions are very fast while write data transactions are somewhat slower (due to the parity that has to be calculated). If a drive fails, you still have access to all data, even while the failed drive is being replaced and the storage controller rebuilds the data on the new drive. Disadvantages of RAID 5: Drive failures have an effect on throughput, although this is still acceptable. This is complex technology. If one of the disks in an array using 4TB disks fails and is replaced, restoring the data (the rebuild time) may take a day or longer, depending on the load on the array and the speed of the controller. If another disk goes bad during that time, data are lost forever.

Answer 142

Advantages of RAID 6: Like with RAID 5, read data transactions are very fast. If two drives fail, you still have access to all data, even while the failed drives are being replaced. So RAID 6 is more secure than RAID 5. Disadvantages of RAID 6: Write data transactions are slower than RAID 5 due to the additional parity data that have to be calculated. In one report I read the write performance was 20% lower. Drive failures have an effect on throughput, although this is still acceptable. This is complex technology. Rebuilding an array in which one drive failed can take a long time.

Answer 143

Advantages of RAID 10: If something goes wrong with one of the disks in a RAID 10 configuration, the rebuild time is very fast since all that is needed is copying all the data from the surviving mirror to a new drive. This can take as little as 30 minutes for drives of 1 TB. Disadvantages of RAID 10: Half of the storage capacity goes to mirroring, so compared to large RAID 5 or RAID 6 arrays, this is an expensive way to have redundancy.

Answer 144

The load balancing algorithm that distributes incoming traffic based on the server's current workload is "Least connections." This algorithm directs new connections to the server with the fewest active connections at the time of the request, helping to evenly distribute the load among available servers.

Answer 145

A load balancer acts as the “traffic cop” sitting in front of your servers and routing client requests across all servers capable of fulfilling those requests in a manner that maximizes speed and capacity utilization and ensures that no one server is overworked, which could degrade performance.

Answer 146

A load balancing algorithm. Load balancers are the devices or software systems that implement these algorithms to distribute incoming network traffic across multiple servers. These algorithms are used within load balancers to achieve load-balancing functionality. Round-robin: Requests are distributed equally to servers in a cyclic manner, providing a fair distribution of traffic among available servers.

Answer 147

Weighted round-robin: Requests are distributed based on assigned weights, allowing administrators to prioritize servers with higher capacities or performance capabilities. Remember: Round-robin and weighted round-robin are load balancing algorithms rather than load balancers themselves. Load balancers are the devices or software systems that implement these algorithms to distribute incoming network traffic across multiple servers. These algorithms are used within load balancers to achieve load balancing functionality.

Answer 148

RAID Type: RAID 0 (Striping) Explanation: RAID 0 can be used to enhance performance by striping data across multiple drives, resulting in improved read and write speeds. It increases storage capacity by combining the capacity of all drives. However, RAID 0 does not offer data redundancy or fault tolerance, so it may not be suitable if data protection is a priority.

Answer 149

RAID Type: RAID 10 (Striping + Mirroring) Explanation: RAID 10 combines the benefits of both striping and mirroring. It offers improved performance by striping data across mirrored pairs of drives. It also provides fault tolerance by ensuring that even if one drive fails within a mirrored pair, the other mirrored pair(s) can still function. RAID 10 strikes a balance between performance, fault tolerance, and storage efficiency, making it suitable for virtualization servers. However, it requires a larger number of drives, which can impact cost.

Answer 150

Yes, a firewall is typically placed between the ISP (Internet Service Provider) and the LAN (Local Area Network) in a network infrastructure. Its primary function is to control and monitor incoming and outgoing network traffic, acting as a barrier between the internet and the LAN. The firewall helps enforce security policies, filter out unauthorized access attempts, and protect the internal network from potential threats or malicious activities originating from the internet. It plays a crucial role in securing the network by inspecting and managing traffic based on predefined rules and policies.

Answer 151

1. Identify the Problem. ... 2. Establish a Theory of Probable Cause. ... 3. Test the Theory to Determine the Cause. ... 4. Establish a Plan of Action and Implement the Solution. ... 5. Verify Full System Functionality and Implement Preventive Measures.

Answer 152

Enabled in BIOS/UEFI

Answer 153

Pooled resources refer to the practice of combining and sharing resources, such as funds, equipment, or personnel, among multiple individuals, organizations, or entities. Pooling: Multiple individuals, organizations, or entities contribute their resources to a common pool. Shared Access: The pooled resources are made available to all participants who have contributed. Utilization: Participants can access and use the pooled resources based on predefined rules or agreements. Efficiency: Pooled resources allow for more efficient use of limited or expensive resources, as they are shared among multiple users. Cost Sharing: By pooling resources, the costs associated with acquiring and maintaining resources are distributed among the participants. Collaboration: Pooled resources foster collaboration and cooperation among participants, as they work together towards common goals. Increased Capacity: Participants benefit from access to a broader range of resources and capabilities than they would individually possess. Flexibility: Pooled resources can be allocated and reallocated according to changing needs, maximizing their overall effectiveness. Overall, pooled resources enable efficient resource utilization, cost sharing, collaboration, and increased capacity, benefiting all participants involved.

Answer 154

VDI is useful in the following scenarios: Remote work Centralized management Cost savings Enhanced security Scalability

Answer 155

Platform as a Service (PaaS) is primarily used for application development, deployment, and management.

Answer 156

Infrastructure as a Service (IaaS) is mostly used for providing virtualized computing resources such as virtual machines, storage, and networking. It allows users to have more control and flexibility over their infrastructure without the need for physical hardware.

Answer 157

Software as a Service (SaaS) is predominantly used for delivering software applications over the internet. Users can access and use these applications without the need for installation or maintenance, as the software is centrally hosted and managed by the provider.

Answer 158

Drum: Located inside the printer, the drum receives a static charge and attracts toner to create the image to be printed. Toner Cartridge: Housed inside the printer, the toner cartridge contains the powdered toner used to create the printed image. Fuser Unit: Located near the output tray, the fuser unit uses heat and pressure to bond the toner to the paper. Paper Tray: Usually at the bottom of the printer, the paper tray holds the sheets of paper to be printed. Transfer Belt: Positioned above the paper tray, the transfer belt transfers the image from the drum onto the paper. Control Panel: Typically located on the front of the printer, the control panel allows users to navigate settings, monitor print jobs, and perform various functions. Print Head: Inside the toner cartridge, the print head controls the application of toner onto the drum and ultimately onto the paper. Imaging Unit: Found inside the printer, the imaging unit combines the functions of the drum and the toner cartridge.

Answer 159

Ink Cartridges: Usually located within a carriage that moves back and forth across the printer, ink cartridges contain liquid ink that is sprayed onto the paper to create the printed image. Print Head: Part of the ink cartridge or a separate component, the print head contains tiny nozzles that spray ink onto the paper in precise patterns. Paper Tray: Positioned at the bottom or rear of the printer, the paper tray holds the sheets of paper to be printed. Control Panel: Typically located on the front of the printer, the control panel allows users to navigate settings, monitor print jobs, and perform various functions. Platen: Found inside the printer, the platen provides a flat surface for the paper to rest on and move through while being printed. Duplexer (optional): In some inkjet printers, a duplexer can be present, allowing for automatic double-sided printing. Paper Feed Rollers: These rollers, usually located within the paper tray or near the platen, help feed the paper into the printer for printing. Output Tray: Positioned at the top or front of the printer, the output tray collects the printed pages as they are ejected from the printer.

Answer 160

Quick and high tech and uses less energy. SCRAM!

Answer 161

1. Processing. 2. Charging. 3. Exposing. 4. Developing. 5. Transfer. 6. Fusing. 7. Cleaning.

Answer 162

-600v to drum and +600v to paper

Answer 163

Is passive and does not disrupt data. Network taps are used to monitor network performance, detect security threats, and troubleshoot network issues.

Answer 164

22 = for two SS/ducks It can secure things like transfers, commands and all sorts.

Answer 165

Uncorrectable bad sectors

Answer 166

Sets up secure on internet.

Answer 167

Repair GPT. The "OS not found" error at boot time is an indication that the MBR (Master Boot Record) or GPT (Globally Unique ID Partition Table) is corrupted or faulty. If this occurs, you should reboot into the Windows recovery mode and use the 'bootrec /fixboot' command to fix the GPT.

Answer 168

All wireless products with 802.11n support MIMO. The technology helps allow 802.11n to reach higher speeds than products without 802.11n. To implement MIMO, the station (mobile device) or the access point (AP) must support MIMO. For optimal performance and range, both the station and the AP must support MIMO.

Answer 169

DSL. POTS (sometimes also referred to as PSTN, or public switched telephone network) stands for plain old telephone service, and is what everyone knows as their traditional landline phone system. It's essentially an analog voice transmission system that's installed with copper wires.

Answer 170

2.4GHz penetrates solid objects more effectively. 5GHz provides faster data connections. 2.4GHz has a higher coverage area. 5GHz has higher bandwidth.