CTS 1 EXAM PREP: KEY AND LATEST A+ QUESTIONS AND
ANSWERS
Which of the following statements best describes the limitations of Ethernet
traffic?
Ethernet frames can travel through a switch, but not a router.
A 1000BaseT network transmits _____.
1 Gbps baseband signals over twisted pair Cat cables
True or false: 40/100 Gigabit Ethernet cannot be run over twisted pair Cat cable.
TRUE
In the field, you are most likely to see 10 Mbps Ethernet used _____.
to connect end nodes to switches or hubs
Which of the following functions are handled by Internet Protocol (IP)? Select all
that apply.
Routing packets; Fragmenting packets; Logical addres structure
What pieces of information make up a socket? Check all that apply.
IP address; Protocol identifier; Port
Match each component of an IP address with its definition.
Subnet Mask- A separate number; Host bits- The last; Network identifier bits- The first
Bits equal to 1 in a subnet mask indicate that the corresponding bits in an IP
address _____.
identify the network
Prior to the development of CIDR, an organization that needed a thousand
unique, globally routable IP addresses would require at least a _____ network.
Class B
In the IP address 192.168.1.0/20, the "/20" indicates that the _____.
address has 20 network identifier bits
In the IPv6 address below, click on the hexadecimal word(s) responsible for
identifying the address's subnet.
fec8:ba98:7654:0080:fdec:ba98:7654:3201
The IETF recommends that no more than _____ bits of an IPv6 address be used
as network identifier bits.
,64
Subnetting is the process of _____.
logically dividing a network into several smaller networks
If you subnet an IPv4 network by extending the subnet mask by two bits, you end
up with _____.
four subnets, each about ¼ the size of the original network.
What components are required in order for an IPv4 address to be valid? Check all
that apply.
Subnet mask; Network address; Broadcast address
A private organization might wish to subnet its own network in order to _____.
Check all that apply.
decrease the amount of broadcast traffic devices receive; improve network security
Match each IPv4 private address range with its associated network class.
Class B- 172.16.0.0/12; Class A- 10.0.0.0/8; Class C- 192.168.0.0/8
True or false: devices on different networks can use the exact same private IP
address.
TRUE
Network address translation (NAT) allows devices with private IP addresses to
_____.
communicate with devices on other networks
When data is addressed to a broadcast address, it is sent to _____.
every device with the same network bits
The broadcast address for the network address 207.161.92.0/24 would be _____.
207.161.92.255
A loopback address sends data ____.
back to the node that sent it
Match each reserved IPv4 network address range with its purpose.
10.0.0.0/8 - Private address range for large networks; 224.0.0.0/4 -Multicast address
range; 169.254.0.0/16 - Automatic private IP addressing (APIPA) address range;
192.168.0.0/16 - Private address range for small to medium networks; 127.0.0.0/8 -
Loopback address range
, What information do you need in order to assign a static address to a device?
Check all that apply.
Subnet Mask; MAC address; IP address
True or false: once a device obtains an IP address from a DHCP server, it is
guaranteed to receive the same IP address from the server every time it logs onto
that network.
FALSE
Which of the following statements accurately describe DHCP? Select all that
apply.
DHCP addresses are leased to devices for a preset amount of time.; In addition to IP
addresses, a DHCP server can assign network configuration options such as time-to-
live (TTL) and maximum transmission unit (MTU).; As long as a device's "obtain IP
address automatically" option is activated, the device will obtain an IP address from the
DHCP server upon booting with no intervention from the user.
Reserve DHCP allows you to _____.
assign static IP addresses to devices using a DHCP server
A device with an APIPA address can communicate with ____.
any APIPA-enabled devices on the same subnet
A device on a DHCP-enable network might receive an APIPA address if _____.
Check all that apply.
the DHCP server has mechanically failed; the DHCP server's pool of addresses is
exhausted
An organization needs its own DNS server if it _____.
uses DNS internally to manage the names and addresses of devices on the private
network
Network access control (NAC) may grant users rights to access system
resources based on _____. Check all that apply
username and password; the type of connection being used to access the network; the
state of anti-virus software on the endpoint
A network administrator can allow unrequested incoming traffic, such as remote
Telnet commands from a particular device, using _____.
ANSWERS
Which of the following statements best describes the limitations of Ethernet
traffic?
Ethernet frames can travel through a switch, but not a router.
A 1000BaseT network transmits _____.
1 Gbps baseband signals over twisted pair Cat cables
True or false: 40/100 Gigabit Ethernet cannot be run over twisted pair Cat cable.
TRUE
In the field, you are most likely to see 10 Mbps Ethernet used _____.
to connect end nodes to switches or hubs
Which of the following functions are handled by Internet Protocol (IP)? Select all
that apply.
Routing packets; Fragmenting packets; Logical addres structure
What pieces of information make up a socket? Check all that apply.
IP address; Protocol identifier; Port
Match each component of an IP address with its definition.
Subnet Mask- A separate number; Host bits- The last; Network identifier bits- The first
Bits equal to 1 in a subnet mask indicate that the corresponding bits in an IP
address _____.
identify the network
Prior to the development of CIDR, an organization that needed a thousand
unique, globally routable IP addresses would require at least a _____ network.
Class B
In the IP address 192.168.1.0/20, the "/20" indicates that the _____.
address has 20 network identifier bits
In the IPv6 address below, click on the hexadecimal word(s) responsible for
identifying the address's subnet.
fec8:ba98:7654:0080:fdec:ba98:7654:3201
The IETF recommends that no more than _____ bits of an IPv6 address be used
as network identifier bits.
,64
Subnetting is the process of _____.
logically dividing a network into several smaller networks
If you subnet an IPv4 network by extending the subnet mask by two bits, you end
up with _____.
four subnets, each about ¼ the size of the original network.
What components are required in order for an IPv4 address to be valid? Check all
that apply.
Subnet mask; Network address; Broadcast address
A private organization might wish to subnet its own network in order to _____.
Check all that apply.
decrease the amount of broadcast traffic devices receive; improve network security
Match each IPv4 private address range with its associated network class.
Class B- 172.16.0.0/12; Class A- 10.0.0.0/8; Class C- 192.168.0.0/8
True or false: devices on different networks can use the exact same private IP
address.
TRUE
Network address translation (NAT) allows devices with private IP addresses to
_____.
communicate with devices on other networks
When data is addressed to a broadcast address, it is sent to _____.
every device with the same network bits
The broadcast address for the network address 207.161.92.0/24 would be _____.
207.161.92.255
A loopback address sends data ____.
back to the node that sent it
Match each reserved IPv4 network address range with its purpose.
10.0.0.0/8 - Private address range for large networks; 224.0.0.0/4 -Multicast address
range; 169.254.0.0/16 - Automatic private IP addressing (APIPA) address range;
192.168.0.0/16 - Private address range for small to medium networks; 127.0.0.0/8 -
Loopback address range
, What information do you need in order to assign a static address to a device?
Check all that apply.
Subnet Mask; MAC address; IP address
True or false: once a device obtains an IP address from a DHCP server, it is
guaranteed to receive the same IP address from the server every time it logs onto
that network.
FALSE
Which of the following statements accurately describe DHCP? Select all that
apply.
DHCP addresses are leased to devices for a preset amount of time.; In addition to IP
addresses, a DHCP server can assign network configuration options such as time-to-
live (TTL) and maximum transmission unit (MTU).; As long as a device's "obtain IP
address automatically" option is activated, the device will obtain an IP address from the
DHCP server upon booting with no intervention from the user.
Reserve DHCP allows you to _____.
assign static IP addresses to devices using a DHCP server
A device with an APIPA address can communicate with ____.
any APIPA-enabled devices on the same subnet
A device on a DHCP-enable network might receive an APIPA address if _____.
Check all that apply.
the DHCP server has mechanically failed; the DHCP server's pool of addresses is
exhausted
An organization needs its own DNS server if it _____.
uses DNS internally to manage the names and addresses of devices on the private
network
Network access control (NAC) may grant users rights to access system
resources based on _____. Check all that apply
username and password; the type of connection being used to access the network; the
state of anti-virus software on the endpoint
A network administrator can allow unrequested incoming traffic, such as remote
Telnet commands from a particular device, using _____.
