Practice test questions 3. Flashcards
What type of cable should be used to connect a laptop directly to another laptop to form an Ethernet network?
Crossover Cable. A crossover cable should be used to connect two similar devices (PC to PC, Router to Router, Switch to Switch, etc.) to create a network. For an ethernet cable, this should be a network cable with a T568A wiring standard on one end and a T568B wiring standard on the other end of the cable to create a crossover cable. A straight-through or patch cable is a network cable that uses the same wiring standard on both ends such as T568A to 5T568A or T568B to T568B. A serial cable is a data cable that transmits data a single bit at a time. A DB-9 connector is used to terminate an RS-232 serial cable.
What type of services can allow you to get more storage and more resources added to the cloud as fast as possible?
Rapid Elasticity. Rapid elasticity allows users to automatically request additional space in the cloud or other types of services. Because of the setup of cloud computing services, provisioning can be seamless for the client or user. Providers still need to allocate and de-allocate resources that are often irrelevant on the client or user’s side. This feature allows a service to be scaled up without purchasing, installing, and configuring new hardware, unlike if you had to install more physical storage into a server or datacenter. Resource pooling refers to the concept that allows a virtual environment to allocate memory and processing capacity for a VMs use.
A customer has asked you for the best way to watch videos from their network-attached storage device when they are away from home using their smartphone. What should you configure on their smartphone to BEST meet this requirement?
Media streaming application. The best method of watching television on a mobile device is to use a media streaming application. By installing a compatible media streaming application on the mobile device, the customer can access streaming content whenever and wherever they want. While other solutions like remote access or file sharing may also work, a media streaming application is the BEST solution for this customer’s needs. A file server is used to host and control access to shared files and folders for the organization, but they are not configured on the smartphone itself. Remote access applications like RDP and SSH are better for remote administration of a device than for media streaming. For media streaming, a dedicated application should be used instead for the best performance and minimal lag.
You are configuring a new printer for a small real estate office. There are only 4 computers in the network, and they are all connected to a single 4-port switch/router/cable modem device. There are no additional open ports on the device and no servers configured within the network. All the computers operate as part of a single workgroup with no domain controller. You need to configure the printer to allow all 4 computers to print to it as long as they are connected to the switch. What methods would BEST allow the users to print to the printer based on this network’s configuration?
Configure it as a shared printer connected to one of the four workstations. Due to the small size of the network and the lack of additional open switch ports, it would BEST to connect the printer to one of the workstations and configure it as a shared printer. This will allow any of the other workstations to print to the shared printer via the connected workstation. This allows the workstation to act as a print server, which means that the computer must always be left on or the rest of the users would be unable to print. Bluetooth printing is set up as a one-to-one pairing between a single computer and a single printer that is located within 10 feet. Since this is a small office, they do not have a dedicated server to configure for use as a print server. Cloud printing is only supported by some printers and the question doesn’t specify if this printer supports this feature.
A client claims that their computer keeps rebooting itself without warning. What is the BEST action you should take to investigate and troubleshoot this issue?
Test the power supply. A computer that keeps rebooting itself is a symptom of a faulty power supply or a computer that is overheating. If the power supply is faulty, the computer will reboot itself. If the issue is caused by an overheating issue (such as a cooling fan failure), the computer will usually reboot itself after running for 15-20 minutes (once enough heat is built-up). Therefore, you should test the power supply first to determine if that is the root cause of the issue, and then replace the power supply, if required.
A workstation is having intermittent issues and continues to receive system errors or freeze. You believe that the problem is being caused by the workstation’s motherboard, not getting the proper amount of power to it, and you want to perform a test to confirm your theory. What tools should you use to determine if the proper amount of power is being supplied to the motherboard?
Multimeter. A multimeter can measure the voltage, amperage, and resistance of a circuit. A multimeter can be a hand-held device useful for basic fault finding and field service work or a bench instrument that can measure electricity with a high degree of accuracy. Using a multimeter, you can determine the exact voltage being supplied to the motherboard from the workstation’s power supply. A POST card is a plug-in diagnostic interface card that displays progress and error codes generated during the power-on self-test of a computer. A loopback plug is used to test a port. When you connect a loopback plug to a port, you should see a solid connection LED. You can also use the loopback plug in conjunction with diagnostic software. A cable tester is used to ensure a cable is properly created as a patch cable (straight through) or a crossover cable. Cable testers provide detailed information on the physical and electrical properties of the cable. For example, they test and report cable conditions, crosstalk, attenuation, noise, resistance, and other cable run characteristics.
You have just finished building a Windows server, installing its operating system, updating its security patches, formatting a dedicated data partition, and creating accounts for all of the company’s employees. What is the next thing that must be configured to provide users with the ability to access large multifunction devices across the network?
Printer Server. Most of the options provided are reasonable next steps, but the question specifically states that you want to allow the users to access multifunction devices on the networks. This indicates that the users will need access to a print server since printers are multifunction devices. A print server is a type of server that connects printers to client computers over a computer network. Print servers act as an intermediary between the computers and printers by accepting print jobs and then sending them to the correct printer when it is ready to accept new jobs. A file server is used to host and control access to shared files and folders for the organization.
You have been asked to set up the corporate email on several mobile devices for Dion Training’s employees. The employees will use their mobile devices to send their emails when out of the office. What mail protocols should you configure to allow the employees to send their mail?
SMTP. You should configure SMTP since it is the only protocol used to send emails. POP3 and IMAP are used to receive emails. HTTPS is used for web browsing, not for receiving emails. The post office protocol (POP3) is a TCP/IP application protocol providing a means for a client to access email messages stored in a mailbox on a remote server over port 110. The server usually deletes messages once the client has downloaded them. The internet message access protocol (IMAP) is a TCP/IP application protocol that provides a means for a client to access email messages stored in a mailbox on a remote server using TCP port number 143. Unlike POP3, messages persist on the server after the client has downloaded them. IMAP also supports mailbox management functions, such as creating subfolders and access to the same mailbox by more than one client at the same time. The simple mail transfer protocol (SMTP) is the protocol used to send mail between hosts on the Internet using TCP port 25. The hypertext transfer protocol secure (HTTPS) is a secure protocol used to provide web content to browsers using SSL/TLS encryption over port 443.
What ports is used for the request and distribution of DHCP configuration information?
- The dynamic host control protocol (DHCP) is a protocol used to allocate IP addresses to a host when it joins a network. DHCP utilizes UDP ports 67 and 68. The domain name system (DNS) protocol is the protocol used to provide names for an IP address based on their mappings in a database using TCP/UDP port 53. The hypertext transfer protocol (HTTP) is a protocol used to provide web content to browsers using port 80. The simple network management protocol (SNMP) is a protocol for monitoring and managing network devices over UDP ports 161 and 162. A management system collates data sent by agents running on each device. The agents maintain a Management Information Base of configuration and usage data. An agent can also generate a trap, alerting the management system of some notable event (such as a printer that is out of paper).
You are building a Desktop PC for a newly hired employee at Dion Training. The computer’s motherboard doesn’t have a wireless network adapter integrated into it, so you need to purchase an expansion card to provide this functionality. What motherboard connections will most likely be used to connect the wireless network adapter card?
PCIE x1. PCIe (peripheral component interconnect express) is an interface standard for connecting high-speed components. Every desktop PC motherboard has several PCIe slots you can use to add GPUs (video cards or graphics cards), RAID cards, network adapters, Wi-Fi cards, or SSD (solid-state drive) add-on cards. The types of PCIe slots available in your PC will depend on your motherboard and are designated as PCIe x1, x4, x8, and x16. Network adapters and Wi-Fi network cards almost exclusively rely on PCIe x1 expansion slots or a USB connection for their connectivity. Graphics cards usually rely on a PCIe x16 expansion slot. eSATA is an external SATA port used to connect an external storage device such as a hard drive. The accelerated graphics port (AGP) is a parallel expansion card standard that was originally designed for attaching a video card to a computer system to assist in the acceleration of 3D computer graphics. AGP has been replaced with PCIe due to its faster speeds.
A customer is upset that their laptop is too slow during the bootup process and when loading programs. The laptop is configured with an Intel i7 processor, 16 GB of RAM, a 500 GB HDD operating at 5400 RPM, and a dedicated GPU with 8 GB of RAM. What upgrades should you install to best increase the system’s performance?
512 GB SSD. Based on the system specifications, the system’s slowest part appears to be the 5400 RPM hard disk drive (HDD). Therefore, replacing the HDD with a solid-state device (SSD) would dramatically increase the loading speeds as the operating system and other programs are read from the storage device during bootup and when loading programs. Another viable option would be to purchase a faster HDD, such as operating at 7200 RPM or 10,000 RPM. Still, though, an SSD would be faster than a higher RPM HDD, so it remains the best answer. If the laptop had 4GB or less of memory then it would be appropriate to increase the memory to 8GB or 16GB to increase the speed. An integrated GPU cannot be upgraded on a laptop since the integrated GPU is built into the CPU of the laptop, nor could a dedicated GPU be added to most modern laptops.
You had just bought a top-of-the-line smartphone 2 months ago. In the last week, though, the smartphone seems to be running slowly. About 3 weeks ago, a new version of the phone’s operating system was installed. At first, everything was still working fine, but this week the smartphone is very sluggish. You brought the smartphone back to the store to diagnose the problem. They have run a full set of diagnostics on the smartphone’s hardware, but no issues were found to exist with the hardware. What do you think is MOST likely causing the poor performance with this smartphone?
A lot of apps on the device are performing an update based on the newer OS being released. The most likely cause for the slowdown of this top-of-the-line smartphone is that too many apps are simultaneously trying to perform an update, and it is overwhelming the processor and memory. This commonly occurs within a week or two of a newly installed OS version. For example, if we upgrade from iOS 14 to iOS 15, all of the apps are updated and recoded to support the newer OS version. They are usually released within 1-2 weeks of the newly released version. Since the hardware passed all the diagnostics, the problem cannot be the internal storage. The OS update isn’t too resource-intensive since it is only a two-month-old top-of-the-line device.
You have been asked to set up the email on a corporate laptop. The employees of Dion Training are only allowed to receive their email on one device. The email should be removed from the server’s mailbox whenever the client connects to the server to download the messages. What mail protocols should you configure to allow an employee to receive their mail on their laptop and meet these requirements?
POP3. You should configure POP3 because the mail is downloaded to the device and removes mail from the server’s mailbox by default. IMAP does not remove the mail from the server when the client connects but instead maintains a copy on the server indefinitely until the user forces it to be deleted. SMTP is used to send emails, not receive them. HTTPS is used for web browsing, not for receiving emails. The post office protocol (POP3) is a TCP/IP application protocol providing a means for a client to access email messages stored in a mailbox on a remote server over port 110. The server usually deletes messages once the client has downloaded them. The internet message access protocol (IMAP) is a TCP/IP application protocol that provides a means for a client to access email messages stored in a mailbox on a remote server using TCP port number 143. Unlike POP3, messages persist on the server after the client has downloaded them. IMAP also supports mailbox management functions, such as creating subfolders and access to the same mailbox by more than one client at the same time. The simple mail transfer protocol (SMTP) is the protocol used to send mail between hosts on the Internet using TCP port 25. The hypertext transfer protocol secure (HTTPS) is a secure protocol used to provide web content to browsers using SSL/TLS encryption over port 443.
What option would you MOST likely use to configure PXE to set up remote imaging on a computer during a deployment?
BIOS boot option. To configure a computer to utilize the PXE boot option, you need to configure it under the BIOS boot option. The Preboot Execution Environment (PXE) is an industry-standard client/server interface that allows networked computers that are not yet loaded with an operating system to be configured and booted remotely by an administrator. Secure boot is a security system offered by UEFI that is designed to prevent a computer from being hijacked by malware. Power management allows Windows to reduce or turn off the power supplied to hardware components to save energy.
You have been asked to recommend a RAID for use in a video editing workstation. The workstation must be configured to allow the highest speed operation and use 100% of the available drive free space. The workstation has no requirement for redundancy within this configuration. What configuration do you recommend?
Raid 0. RAID 0 (disk striping) is the process of dividing a body of data into blocks and spreading the data blocks across multiple storage devices, such as hard disks or solid-state drives (SSDs), in a redundant array of independent disks (RAID) group. Unlike other RAID levels, RAID 0 does not have parity or redundancy. It will provide faster performance and speed, as well as use 100% of the available drive space. A RAID 0 provides disk striping (speed/performance) but not mirroring with a minimum of two disks. A RAID 1 provides mirroring (redundancy) but not disk striping with a minimum of two disks. A RAID 5 provides block-level striping with distributed parity to provide redundancy using a minimum of three disks. A RAID 10 combines disk mirroring and disk striping to protect data stored in the array and required a minimum of four disks.
