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A+ 1001 > Chapt. 2 review questions > Flashcards

Chapt. 2 review questions Flashcards

1
Q

Order from fastest to slowest wired and wireless.

a. ISDN
b. fixed line-of-sight
c. satellite
d. dial-up
e. DSL
f. fiber
g. cable
h. cellular

A

wired: | wireless:
f. fiber | h. cellular
g. cable | b. fixed-line-of-sight
e. DSL | c. satellite
a. ISDN |
d. dial-up |

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2
Q

which of the following situations would require the use of UDP but not TCP? (choose all that apply)

a. video streaming
b. email
c. voice
d. online gaming
e. SMS messaging

A

a. video streaming
c. voice
d. online gaming

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3
Q

when you pay online through your browser for an item in a shopping cart, which port is your browser likely using to transport information?

a. 68
b. 80
c. 443
d. 53

A

c. HTTPS port 443

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4
Q

which device enables communication outside a LAN?

a. router
b. switch
c. wireless bridge
d. hub

A

a. router

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5
Q

You have been asked to create a VLAN inside the company LAN. Which device will you configure?

a. wireless bridge
b. managed switch
c. router sub-interface
d. the central hub

A

b. VLANs are created in a LAN using advanced switches that allow configuration management.

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6
Q

match the following devices with their definitions.
1. wireless access point
2. router
3. switch
4. modem
5. firewall
6. hub
7. patch panel
_________________________________________________
a. converts digital signals to analog and analog to digital
b. uses a MAC address to direct data to a specific computer
c. acts as a junction point for network cabling
d. allows networks to communicate with each other
e. broadcasts data to all attached computers
f. extends wired LANs into wireless space
g. prevents unwanted intrusion from outside the network

A
  1. f
  2. d
  3. b
  4. a
  5. g
  6. e
  7. c
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7
Q

under what circumstances would you use a cloud-based network controller?

a. to extend the LAN to work on adjacent wireless networks
b. to improve internet speeds to the LAN
c. for remote management of wireless LANs
d. to control costs of web connectivity at the network operations center

A

c. cloud-based network controllers allow an administrator to manage a LAN from anywhere on the web.

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8
Q

which protocol that is used to access the internet is used by all major operating systems, including Windows, macOS, Linux, Android, and iOS?

a. APIPA
b. DHCP
c. Telnet
d. TCP/ IP

A

d. TCP/IP is a suite of protocols used for managing traffic on the internet and is the accepted standard used by all major operating systems.

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9
Q
  1. 168.28.10 is an example of which type of IP address?
    a. IPv6
    b. Link local
    c. IPv4
    d. APIPA
A

c. IPv4

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10
Q

given the IP address 192.168.28.10 and subnet mask 255.255.0.0, which is the network portion of the address, and which is the host portion?

a. 192. = host, 168.28.10 = network
b. 192.168.= network, 28.10 = host
c. 192.168.28.= network, 10 = host
d. 192.168 = host, 28.10 = network

A

b. the 255s in the subnet mask indicate the network portion of the address.

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11
Q

which of the following is the subnet mask for a network with 255 hosts?

a. 255.255.255.255
b. 255.255.255.0
c. 255.255.0.0
d. 255.0.0.0

A

b. 255.255.255.0 is the subnet mask for a network with 255 address in the last octet.

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12
Q
  1. 0.0.1 and ::1 are both IP addresses. which of the following statements are true? (choose all that apply)
    a. 127.0.0.1 is a useable address on a network.
    b. ::1 is an IPv6 address
    c. 127.0.0.1 is an M.
    d. ::1 is a CIPS address
    e. both addresses are loopback addresses
A

b, e. 127.0.0.1 is a diagnostic tool known as the IPv4 loopback address, which is used to test connectivity between a computer and its network. ::1 is the IPv6 counterpart.

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13
Q
  1. 0.0.1 is which type of IP address?
    a. Public
    b. Private
    c. APIPA
    d. loopback
A 
b. this is an example of a class A private IP address.
range is 10.0.0.0 to 10.255.255.255
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14
Q
  1. 254.0.1 is which type of IP address?
    a. loopback
    b. subnet mask
    c. DHCP
    d. APIPA
A

d. APIPA addresses are automatically assigned in the event that the DHCP system is unable to provide IP addresses. as a technician anytime you see an IP address that begins with 169.254.x.x, you should look for problems with DHCP. APIPA is supported by Microsoft, macOS, and Linux.

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15
Q

which of the following statements best describes an advantage of IPv6 over IPv4?

a. IPv6 is less complicated and easier to use.
b. IPv6 automatically assigns IP addresses on a network.
c. IPv6 translates domain names into IP addresses.
d. IPv6 provides a dramatic increase in the number of available IP addresses.

A

d. every device that accesses the internet (every PC, laptop, tablet, smartphone, and so on) must have its own IP address and no two addresses may be the same. Today, a single family might need a dozen addresses; the world is simply running out of IPv4 addresses. IPv6 provides a huge increase in the number of available IP addresses.

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16
Q

Which of the following protocols is used to automatically assign IP addresses on a network?

a. APIPA
b. DHCP
c. TCP/IP
d. DNS

A

b. DHCP automatically assigns IP addresses to computers on a network.

17
Q

When you enter the web address www.mycompany.com, the address is translated to a numeric IP address to establis a connection. Which of the following is the service that provides the translation?

a. TCP
b. UPnP
c. DNS
d. DHCP

A

c. DNS resolves domain names to their IP addresses.

18
Q

As an IT technician, it is important for you to be familiar with the protocols and ports used by various applications to send and receive information across a network. Match the port number with the protocol.

a. 443 1. IMAP
b. 80 2. FTP
c. 22 3. HTTP
d. 21 4. HTTPS
e. 110 5. SMTP
f. 143 6. DNS
g. 53 7. SSH
h. 25 8. POP3

A

a. HTTPS
b. HTTP
c. SSH
d. FTP
e. POP3
f. IMAP
g. DNS
h. SMTP

19
Q

Which of the following statements best describes SMTP?

a. SMTP is a protocol for sending email from your computer to a server.
b. SMTP is a naming system that links your computer’s name with its IP address.
c. SMTP is a method for automatically assigning IP addresses to computers on a network.
d. SMTP is a protocol used to access the internet.

A

a. Simple mail transfer protocol (SMTP) is used to send email.

20
Q

which of the following is the family of IEEE standards used by WiFi networks?

a. 802.5
b. 802.11
c. 802.9
d. 802.3

A

b. 802.11

21
Q

Which of the following WiFi encryption methods is the strongest?

a. WPA
b. WPA2
c. WEP
d. WAP3

A

b. WPA2

22
Q

Which of the following statements best describes the function of NAT?

a. NAT changes a private IP address for use inside a LAN into a public IP address for use outside a LAN
b. NAT automatically assigns IP addresses to computers on a LAN
c. NAT automatically assigns a 169.254.x.x address to a computer on a LAN
d. NAT is a secure wireless encryption standard

A

a. NAT is a protocol used by a router to change a computers private IP address used inside a LAN to a public IP address when communicating outside the network. NAT allows the computers on a LAN to remain hidden from the outside world.

23
Q

You have been asked to install a web enabled soil monitor system for an agricultural company. What term is used to describe this kind of device?

a. remote sensing router
b. cloud based network controller
c. NAT device
d. IoT device

A

d. IoT device

A+ 1001 (10 decks)

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