Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

COMPTIA A+ > Core 1 > Flashcards

Core 1 Flashcards

(64 cards)

Start Studying
1
Q

what is Optial Character Recognition, or OCR?

A

technology that converts documents/images into editable digital text

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is Digital Rights Management, or DRM?

A

technology that protects against copyright infringement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is Intelligent Character Recognition, or ICR?

A

technology that translates handwriting into digital form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what issues are connected to grinding noise, paper jams, faded print & blank page printed?

A

grinding: carriage, fuser, toner, rollers / jam: sep. pad, worn rollers, wrong paper / faded: low ink, toner, draft mode / blank: driver, no ink, toner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what makes up an IPv6 address?

A

network prefix, interface identifier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is Network Access Control, or NAC?

A

defines and enforces network access policies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is Public Key Infrastructure, or PKI?

A

hiearchical system of digital certificates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is Remote Monitoring and Management, or RMM?

A

enables remote access over network devices

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is Acceptable Use Policy, or AUP?

A

rules for users of computers, networks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is stateful address configuration?

A

using DHCPv6 server to assign addresses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is StateLess Address AutoConfiguration, or SLAAC?

A

uses Router Advertisements (RA) and the device’s MAC address to generate its own unique IPv6 address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is Recursive and Iterative Lookup?

A

DNS mapping to resolve name to IP address. Recursive keeps going, Iterative stops and suggests next DNS server to try

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is Zeroconf and Bonjour?

A

allow devices on LAN to automatically discover each other and establish communication without requiring manual configuration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what do VPN’s use and what’re the 3 types?

A

full or split tunnel / site-to-site, client-to-site, clientless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what 4 pieces of info do you need to statically assign an IP address?

A

IP address, subnet mask, default gateway, DNS server

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what are private, non-routable IPv4 addresses?

A

10.0.0.0 to 10.255.255.255 / 172.16.00 to 172.31.255.255 / 192.168.0.0 to 192.168.255.255

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what does CIDR notation signify? (x.x.x.x/8)

A

the number of bits used for the network portion of the address. (/16= the network is 16 bits)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what are the 4 layers that data travels?

A

link/LAN (what data), internet (where its going), transport (how its going, udp, tcp), application (what to do with it)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what are 2 other terms for a microwave connection?

A

WISP (the providers), WiMax (the technology)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what are 2G, 3G, 4G, 5G networks?

A

2G: GSM / 3G: WCDMA, HSPA, HSPA+ / 4G: LTE, LTE-A, MIMO / 5G: low, mid, high band

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what are the specs of ADSL, SDSL, VDSL?

A

ADSL: 24 Mbps DL 1.4 Mbps UL / SDSL: 2.3 Mbps DL=UL / VDSL: 100 Mbps DL 10 Mbps UL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is a cable modem?

A

device that connects computers/networks to the internet via a cable television line, using coaxial copper cabling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

how does DSL work?

A

connects to DSL modem through existing telephone lines, using twisted-pair copper cabling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

instead of strictly coaxial cabling, some Cable ISP’s use hybrid fiber/coaxial cabling. How is that configured?

A

fiber used for longer distances and coaxial cables are used for the final connection to individual customers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
which technologies are licensed and unlicensed out of 802.11, cellular, microwave, and satellite?
unlicensed: 802.11 / licensed: cellular, microwave, satellite
26
what are 4 connection types used with SSD's?
mSATA, SATA, PCIe, M.2
27
what is containerization?
isolated virtualization, no hypervisor / Containers are not VMs; rather, they are a lightweight way to run applications in isolated environments using the host OS.
28
what does nslookup do?
a command-line tool that queries DNS to obtain domain name or IP address information, helping troubleshoot network issues related to DNS.
29
what does tracert do?
a command-line tool that tracks the route packets take to reach a destination, identifying each hop along the way
30
what are the 3 groups of the port numbers, in order?
well known, nonephemeral/registered, and ephemeral/dynamic/private
31
what are the capacities of SDRAM, and DDR1 through DDR5?
512 MB, 1 GB, 4 GB, 8 GB, 32 GB, 128 GB
32
what are the speeds of SDRAM, and DDR1 through DDR5?
0.5 to 1 / 1 to 3 / 3 to 6 / 6 to 17 / 12 to 25 / 38 to 51 (GT/s = gigatransfers per second)(1GT = 1 billion)
33
what is Preboot Execution Environment, or PXE?
a method of booting an Operating System over a network
34
what protocols do WEP, WPA, and WPA2 use?
WEP uses IV and RC4 / WPA uses TKIP (with RC4) / WPA2 uses AES and CCMP
35
what can cause performance issues in a network?
speed or duplex mismatch (between NIC & switch) / malware / NIC driver not up-to-date
36
what are the dimensions of ATX, Mini-ATX, Micro-ATX, and Mini-ITX?
ATX: 12 x 9.6 / Mini-A: 11.2 x 8.2 / Micro-A: 9.6 x 9.6 / Mini-ITX: 6.7 x 6.7
37
what voltages are used in a PC?
12 VDC, 5 VDC, 3.3VDC (3.3 and 5 are positive, 12 is both positive and negative)
38
what is Data Over Cable Service Interface Specification, or DOCSIS?
a telecommunications standard that enables high-speed internet access via cable television systems
39
what is SRAM?
static / expensive, faster, smaller capacity, cache memory, doesn?t need refreshing
40
what is DRAM?
dynamic / cheaper, slower, larger capacity, main memory, needs constant electrical refreshing, no synch with system
41
what is SDRAM?
synchronous dynamic / synchronizes with system clock cycle, 1 million clock pulses = 1 million data transfers, better performance
42
what is DDR RAM?
double data rate / also synchronizes with system clock cycle but transfers data 2x per clock cycle, instead of 1x
43
what issues does a white stripe on a laser printed page indicate?
uneven toner, clogged toner, worn out drum, defective fuser
44
what issues does a black stripe on a laser printed page indicate?
corona wire issue, toner build up, leaky toner cartridge, worn out drum, defective fuser
45
what is the laser printing process?
corona charges drum, laser neutralizes charges on drum, toner applied to drum, toner transferred to paper, toner fused, brush/blade cleans drum
46
what does "on demand" mean in cloud computing?
instantly access computing resources like storage, proccessing power, or applications
47
what is Secure Boot?
crosschecks software/firmware with trusted digital signature database that're stored in UEFI
48
what does a dusty print indicate when using a laser printer?
issue with fuser
49
what is a Private virtualization network?
VM's can communicate with other VM's but not host or external network
50
what is a Bridged Adapter virtualization network?
VM's connect directly to host's network, they have their own public and private IP address
51
what is an External virtualization network?
VM's can communicate with other VM's, host, and external network
52
what is a NAT virtualization network?
VM's share host's public IP address, but have their own private IP address. Host acts as a router.
53
what is an Internal virtualization network?
VM's can communicate with other VM's and host but not with external network
54
what is Host-only virtualization network?
VM's can communicate with the host, but not other VM's or external network
55
what is a "thin" client?
a PC that relies on a central server for strorage and processing
56
what part combines 4 colors and what part apples a charge to paper to attract toner in laser printing?
transfer belt applies colors and transfers toner from drum to paper / transfer roller applies charge to paper
57
what do VLAN's need in order to communicate with other VLAN's?
a router
58
which cabling supports PoE?
twisted pair copper (cat 5, 6, etc) but not fiber or coaxial
59
does a "test print" on a printer need network connectivity?
no
60
what frequency does zigbee and z-wave use? Which is proprietary and which is open source?
zigbee uses 2.4 Hz and is open source. Z-wave is 800-900 MHz and is proprietary
61
can a faulty power supply still apply power to some components?
yes
62
what does F8, F11 and F12 do?
F8 - troubleshooting, safe mode / F11 - recovery reset, repair / F12 - boot device menu
63
what is Asynchronous Transfer Mode, or ATM?
network protocol that provides high-speed connection between devices on a WAN
64
what is MicroSoft Remote Assistance, or MSRA?
Windows troubleshooting tool, temporary, OTP

COMPTIA A+ (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions