1101 Cont. Flashcards
1
Q
Which type of LCD monitors have the best contrast?
TN, VA, or IPS?
A
VA
TN have the worst.
2
Q
Which type of LCD monitors have the worst brightness?
TN, VA, or IPS?
A
TN
TN = Fast but dim
VA = Great contrast
IPS = Best colors and brightness
3
Q
Which type of LCD monitors have the widest viewing angle?
TN, VA, or IPS?
A
IPS
4
Q
Which type of LCD monitors have the most colors?
TN, VA, or IPS?
A
IPS
5
Q
Which type of LCD monitors have the worst response time?
TN, VA, or IPS?
A
VA
6
Q
Which type of LCD monitors have the deepest blacks?
TN, VA, or IPS?
A
VA
TN = Fast but dim
VA = Great contrast
IPS = Best colors and brightness
7
Q
Which monitor type outputs less light?
LCD or OLED
A
OLED
8
Q
PRL
A
Preferred Roaming List
The list of service providers stored in a cellphone that the phone can use when it’s roaming outside its home area.
9
Q
Is Telnet encrypted or unencrypted?
A
Unencrypted
10
Q
Does SMTP…
- Send Mail
- Retrieve Mail
- Send and Retrieve Mail
A
Send Mail
11
Q
RDP
A
Remote Desktop Protocol
An input/output presentation protocol from Microsoft that governs the keyboard, mouse and screen formatting between clients and servers in a thin client environment.
12
Q
Which type of internet connection is faster?
Cable or DSL
A
Cable
13
Q
Which type of internet connection is cheaper?
Cable or DSL
A
DSL
14
Q
Which type of internet connection uses your phone line?
Cable or DSL
A
DSL
15
Q
ONT
Optical Network Terminal
A
Equipment from the telephone company that terminates its optical fibers at the customer’s premises. Using electricity from the customer’s AC source, the ONT converts the incoming optical signals into electrical signals for telephone, TV and Internet.
16
Q
SPF
SPF is an extension to SMTP.
A
Sender Policy Framework
An email authentication system that verifies that the message came from an authorized mail server. SPF is designed to detect messages from spammers and phishers who falsify the sender’s IP address in the email header. SPF is an extension to the SMTP mail protocol.
17
Q
DKIM
A
An email authentication method that computes a digital signature which is added to the message header.
DKIM = DomainKeys Identified Mail
The receiving mail server obtains the sender’s public key from the DNS system to validate the signature.
18
Q
DMARC
Domain-based (BLANK) (BLANK), Reporting, and Conformance
A
An email security protocal that verifies email senders by building on the DNS, DKIM, and SPF protocols.
DMARC = Domain-based Message Authentication, Reporting, and Conformance
19
Q
Proxy Server
A
A computer system or router that functions as a relay between client and server. It helps prevent an attacker from invading a private network and is one of several tools used to build a firewall.
20
Q
SCADA
A
Supervisory Control And Data Acquisition
Collects data from sensors in local and remote locations and sends them to central computers to control local machinery.
21
Q
Subnet Mask
A
The technique used by the TCP/IP communications protocol that identifies which network segment a packet belongs to. The subnet mask is a binary pattern, and the default mask found in countless small local networks indicates that all the machines are in the same network
22
Q
What is required for manual configuration of network adapter settings?
A
IP address, Subnet mask, Default gateway, and DNS server address
23
Q
How many bits is an IPv6 address?
A
128 bits
24
Q
DBC
A
Direct-buried cable
A kind of communications or transmissions electrical cable which is especially designed to be buried under the ground without any other cover, sheath, or duct to protect it.
25
SAS
**Serial Attached SCSI**
## Footnote
A standard hardware interface for storage drives widely used in datacenters where large numbers of drives are required. SAS drives are generally faster than SATA drives and more reliable, but are also more costly.
26
# What type of cable are these?
RG-6, RG-58, RG-59
**Coaxial Cable**
27
What is the Bandwidth of a Cat 5e cable?
**100 MHz**
## Footnote
**Category | Max. Data Rate | Bandwidth**
Cat5e | 1 Gbps | 100 MHz
Cat6 | 1 Gbps | 250 MHz
Cat6a | 10 Gbps | 500 MHz
Cat7 | 10 Gbps | 600 MHz
Cat7a | 10 Gbps | 1,000 MHz
Cat8 | 40 Gbps | 2,000 MHz
28
What is the Bandwidth of a Cat 6 cable?
| In MHz
**250 MHz**
## Footnote
**Category | Max. Data Rate | Bandwidth**
Cat5e | 1 Gbps | 100 MHz
**Cat6 | 1 Gbps | 250 MHz**
Cat6a | 10 Gbps | 500 MHz
Cat7 | 10 Gbps | 600 MHz
Cat7a | 10 Gbps | 1,000 MHz
Cat8 | 40 Gbps | 2,000 MHz
29
What is the Bandwidth of a Cat 6a cable?
| In MHz
**500 MHz**
## Footnote
**Category | Max. Data Rate | Bandwidth**
Cat5e | 1 Gbps | 100 MHz
Cat6 | 1 Gbps | 250 MHz
**Cat6a | 10 Gbps | 500 MHz**
Cat7 | 10 Gbps | 600 MHz
Cat8 | 40 Gbps | 2 GHz
30
What is the Bandwidth of a Cat 7 cable?
| In MHz
**600 MHz**
## Footnote
**Category | Max. Data Rate | Bandwidth**
Cat5e | 1 Gbps | 100 MHz
Cat6 | 1 Gbps | 250 MHz
Cat6a | 10 Gbps | 500 MHz
**Cat7 | 10 Gbps | 600 MHz**
Cat7a | 10 Gbps | 1,000 MHz
Cat8 | 40 Gbps | 2,000 MHz
31
What is the Bandwidth of a Cat 7a cable?
**1,000 MHz**
## Footnote
**Category | Max. Data Rate | Bandwidth**
Cat5e | 1 Gbps | 100 MHz
Cat6 | 1 Gbps | 250 MHz
Cat6a | 10 Gbps | 500 MHz
Cat7 | 10 Gbps | 600 MHz
**Cat7a | 10 Gbps | 1,000 MHz**
Cat8 | 40 Gbps | 2,000 MHz
32
What is the Bandwidth of a Cat 8 cable?
**2000 MHz**
33
How many peripherals can be connected in a daisy chain from a Thunderbolt port?
**Up to 6**
34
Which Thunderbolt generation switched from Mini DisplayPort to USB-C?
**Gen 3**
35
# What type of signal does DisplayPort support?
Digital or Analog?
Audio, Video, or Both?
**Digital Video and Audio**
36
What is an F Connector or F-Type Connector?
Coaxial cable connector commonly used for "over the air" terrestrial television, cable television and universally for satellite television and cable modems.
| The screw-in plug on the back of the gateway and cable box.
37
# Which is faster?
SRAM or DRAM
**SRAM**
38
# Which is cheaper?
SRAM or DRAM
**DRAM**
39
# Which is used in your computers main memory?
SRAM or DRAM
**DRAM**
40
Which 3 types of storage drives are hot-swappable?
**USB, SATA, and eSATA**
41
A standard hardware interface for solid state drives (SSDs) that uses the PCI Express (PCIe) bus.
NVMe
| Non-Volatile Memory Express
42
What does "xD" refer to?
E**X**treme **D**igital Picture Card
## Footnote
An earlier flash memory card used in digital cameras. Introduced in 2002 by Fuji and Olympus, the xD cards were the smallest flash memory cards on the market until the Mini SD card was announced in 2003. xD Cards provided low-power, high-speed data transfer up to 5 Mbytes/sec in capacities to 512MB.
43
What are the 2 SSD form factors?
**M.2 and mSATA**
44
What are the 3 types of M.2 key slots?
**B key, M key, and B+M key**
45
TPM
| A security chip that is built into PCs.
**Trusted Platform Module**
## Footnote
Introduced in 2009, TPM provides a secure boot operation and checks the system's integrity. It also provides hardware-based encryption by generating a private key that is stored in the chip and cannot be divulged to hackers.
46
# What is a PSU's output measured in?
1. Amps
2. Volts
3. Watts
4. Ohms
**Watts**
47
Secure Boot
Booting a computer with the knowledge that the first instructions executed have not been maliciously altered.
## Footnote
Storing the initial boot loader instructions in a read only memory (ROM) chip is one way to ensure a secure boot.
48
Page Description Language
| What are the two major languages?
A high-level language for describing the layout of a page to be displayed or printed. The two major languages are Adobe's **PostScript** and HP's **PCL**, which are device independent and built into most printers.
49
ADF
**Automatic Document Feeder**
| ADFs are found on copy machines and multifunction devices.
## Footnote
A paper stacker that feeds one sheet of paper at a time into the unit.
50
A set of printer replacement parts is called a...?
**Maintenance Kit**
51
A system program that provides a virtual machine environment is a...?
**Hypervisor**
## Footnote
The term came from the IBM mainframe world, which first introduced the virtual machine (virtualization) concept in the form of VM, initially as software only and later enhanced with hardware circuits.
52
What are two examples of countermeasures against VM escape?
**Sandboxing and Patch Management**
53
# Cellular Generations
**1G**
Analog voice calls with poor audio quality and reliability.
54
# Cellular Generations
**2G**
Digital voice calls, SMS and MMS (texting,) and basic data services like email.
55
# Cellular Generations
**3G**
Mobile broadband internet, web browsing, downloading, streaming. Introduction of smartphones and apps. Still in use today when 4G signals fail.
56
# Cellular Generations
**4G + LTE**
Faster broadband speeds, uses internet protocol with LTE, HD video, video conferencing, cloud computing.
57
# Cellular Generations
**5G**
Even faster broadband speeds. Still being rolled out.
58
PoE
**Power Over Ethernet**
## Footnote
Distributing power over an Ethernet network. Because the power and signal are on the same cable, PoE enables remote network devices such as ceiling-mounted access points, surveillance cameras and LED lighting to be installed far away from AC power sources.
59
# IEEE Standard
Ethernet
**802.3**
60
# IEEE Standard
Wi-Fi
**802.11**
61
# IEEE Standard
WPAN (Wireless Personal Area Network)
| Example: Bluetooth
## Footnote
A group of wireless personal area network (WPAN) standards from the IEEE for low-power devices in both industrial and consumer applications.
**802.15**
62
SDN
**Software-Defined Networking**
## Footnote
An approach to designing and operating large-scale networks that is based on programming the forwarding decisions in routers and switches via software from a central server. Software-defined networking (SDN) differs from traditional networking, which requires configuring each device separately and which relies on protocols that cannot be altered.
The primary applications of SDN have been in wide area network (WAN) traffic engineering, datacenter network virtualization and monitoring. SDN gives network administrators the flexibility to customize their networks based on traffic requirements.
63
# Domain Name System records
A
| Address
**Forward DNS - IPv4**
| Associate subdomain to 32-bit IP
## Footnote
The Address (A) record associates a domain name or subdomain with an IP address, which is the primary purpose of the DNS system. The @ sign identifies "this domain;" for example, A @ nnn.nnn.nnn.nnn means this is the IP of this domain.
64
# Domain Name System records
AAAA
**Forward DNS - IPv6**
(1st IPv6 record)
| Associate subdomain to 128-bit IP
65
# Domain Name System records
A6
**Forward DNS - IPv6**
(Future IPv6 record)
| Associate subdomain to 128-bit IP
66
# Domain Name System records
PTR
| Pointer
**Reverse DNS**
| Associate IP address to a subdomain
## Footnote
The Pointer (PTR) record provides data for reverse DNS, which is used for logging the domain name and verification purposes. Also called "inverse DNS," the PTR record is an option.
67
# Domain Name System records
CNAME
**Domain Aliases**
| Associate an alias to a domain
## Footnote
The Canonical Name (CNAME) record is an alias that points to other names. It is commonly used to map subdomains to the domain without having to enter the IP address again. For example, CNAME mail @ associates the mail subdomain to the this domain.
68
# Domain Name System records
DNAME
**Subdomain Aliases**
| Associate an alias to a subdomain
69
# Domain Name System records
NS
**Associate a domain to a DNS server**
| NS = Name Server
## Footnote
Two Name Server (NS) records identify the authoritative DNS servers for the domain. Required for redundancy, the secondary name server queries the primary server for changes.
70
# Domain Name System records
MX
**Mail Server**
| Associate mail to a mail server
## Footnote
The Mail Exchange (MX) record identifies the server to which email is directed. It also contains a priority field so that mail can be directed to multiple servers in a prescribed order.
71
# Domain Name System records
TXT
**Documentation**
## Footnote
A TXT record can be used for any documentation or identification purpose. It is also used to provide information to the SPF email authentication system.
72
# Domain Name System records
SOA
| Start of Authority
**Name of Primary Nameserver**
## Footnote
The Start of Authority (SOA) record contains the name of the primary DNS server, which must correspond to an NS record in the file.
73
# What is the most common type of DSL Internet access?
1. HDSL
2. ADSL
3. VDSL
4. VDSL2
4. SDSL
5. SHDSL
**ADSL**
| Asymmetric - Fast Down, Slow Up
## Footnote
Provides a faster speed from the Internet to the user than the query to the Internet. For example, a request to view a website is a tiny amount of data, but the returning Web pages and graphics are a huge amount of data by comparison.
74
# Which form of internet has better reliability?
Satellite or Terrestrial
## Footnote
Why?
**Terrestrial**
## Footnote
Terrestrial internet is more reliable than satellite internet because it's not affected by **environmental factors like space debris or weather**.
75
# Which form of internet has better speed?
Satellite or Terrestrial
**Terrestrial**
## Footnote
Terrestrial internet is generally faster than satellite internet. For example, the highest maximum speed offered by a satellite ISP is 500 Mbps, while terrestrial ISPs can offer speeds of up to 5000 Mbps.
76
# Which form of internet has lower latency?
Satellite or Terrestrial
**Terrestrial**
## Footnote
Satellite internet has higher latency than terrestrial internet. This can be a factor in online gaming, where split-second decisions are important.
77
# Which form of internet has lower cost?
Satellite or Terrestrial
**Terrestrial**
## Footnote
Satellite internet is generally more expensive than terrestrial internet. Satellite internet costs can vary based on data allowance and internet speeds. Satellite internet services also require specific equipment, like a satellite dish and modem, which can be leased or purchased.
78
Why might someone choose Satellite internet over Terrestrial internet?
**Availability**
## Footnote
Satellite internet can be the only option in rural areas where there isn't the infrastructure for terrestrial internet.
79
# Fill in the Blanks
The original "integrated drive electronics" (IDE) technology that transferred data from the hard disk over a [BLANK] data channel to the motherboard. After [BLANK] drives were introduced, the [BLANK] term was coined to refer to the [BLANK] drives.
1. Parallel
2. SATA
3. PATA
4. Parallel
## Footnote
Although SATA drives also use integrated drive electronics, they are not referred to as IDE drives.
80
# What is the Data Transfer Rate of this SATA version?
**1.0 (aka I)**
**1.5 Gbps**
81
# What is the Data Transfer Rate of this SATA version?
**2.0 (aka II)**
**3.0 Gbps**
82
# What is the Data Transfer Rate of this SATA version?
**3.0 (aka III)**
**6.0 Gbps**
## Footnote
SATA 1.0 = 1.5 Gbps or 150 MBps
SATA 2.0 = 3 Gbps or 300 MBps
**SATA 3.0/3.1 = 6 Gbps or 600 MBps**
SATA 3.2 = 16 Gbps or 2 GBps
83
# What is the Data Transfer Rate of this SATA version?
**3.2 (aka Express)**
| In Gbps
**16.0 Gbps**
## Footnote
SATA 1.0 = 1.5 Gbps
SATA 2.0 = 3 Gbps
SATA 3.0/3.1 = 6 Gbps
**SATA 3.2 = 16 Gbps**
84
What differentiates SATA version 3.2 from version 3.3?
**SMR (Shingled Magnetic Recording)**
## Footnote
A hard disk recording method that overlaps the recording tracks to increase capacity up to approximately 25%. The tracks overlap each other in parallel like roof shingles; hence, the term. Seagate has been shipping SMR drives since 2013, and SATA 3.3 added support for SMR in 2016.
85
# What is the maximum number of devices that can be attached to a...
SCSI bus
**16 Devices**
86
# What is the maximum number of devices that can be attached to a...
SATA cable
**1 Device**
87
# What is the maximum number of devices that can be attached to a...
PATA cable
**4 Devices**
## Footnote
2 with IDE, 4 with EIDE
88
**DELETE**
NetBIOS
The original networking protocol for DOS and Windows PCs.
## Footnote
NetBIOS packets did not contain a network address and were not easily routable between networks. As a result, the interface to NetBIOS and the transport part of NetBIOS were later separated so that NetBIOS applications could use routable protocols such as TCP/IP and SPX/IPX. The programming interface (API) retained the NetBIOS name, while the transport protocol was renamed NetBEUI.
89
# Which came first?
SATA or PATA
PATA
## Footnote
Originally just known as ATA (Advanced Technology Attachment), it wasn't until the SATA standard was introduced that it became known as PATA.
