CTS LATEST 2026 EXAM QUESTIONS AND SOLUTIONS
RATED A+
✔✔Which of the following are some of the disadvantages of Wi-Fi networks? Check all
that apply. - ✔✔They are less secure than wired networks.; They are susceptible to
radio interference.
✔✔In the OSI model, the _____ define(s) hardware oriented functions like routing,
switching and cable specifications. - ✔✔media layers
✔✔In the OSI model, the _____ define(s) the protocols and software that implement
network services. - ✔✔host layers
✔✔Which layer of the OSI model applies IP address to packets and routes them to their
destinations? - ✔✔Network
✔✔Which layer of the OSI model initiates and ends communications between devices?
- ✔✔Session
✔✔Which layer of the OSI model sends Ethernet frames to their physical destinations? -
✔✔Data Link
✔✔True or false: Gigabit Ethernet is used as a network backbone, but not to connect
end nodes to switches. - ✔✔FALSE
✔✔True or false: in order to be on the same VLAN, devices must be physically
connected to the same switch. - ✔✔FALSE
✔✔Which of the following accurately describe the functionality of a VLAN? Check all
that apply. - ✔✔Devices on a VLAN can send each other Ethernet frames.; Devices on
a VLAN do not receive broadcast traffic from devices outside the VLAN.
✔✔The term Fast Ethernet refers to _____. - ✔✔100 Mbps Ethernet
✔✔To operate in full-duplex mode, Fast Ethernet requires _____. - ✔✔Cat 5 twisted
pair cable or better
✔✔The main purpose of 40/100 Gigabit Ethernet is to _____. - ✔✔aggregate slower
connections
✔✔The IEEE 802.3 standard defines _____. Check all that apply. - ✔✔a collision
avoidance mechanism for half-duplex networks; Physical Layer requirements for
Ethernet traffic; the data format for Ethernet frames
,✔✔Drag these 10 Gigabit physical media to place them in order from shortest cable run
to longest. - ✔✔1. 10GBaseCX4- Four-conductor balanced shielded twisted pair 2.
10GBaseT- Cat 5e twisted pair cable or better 3. 10GBaseLX4- 62.5/125 microm
multimode optical fiber, 1310 nm wavelength 4. 10GBaseER- 9microm mode optical
fiber, 1550 nm wavelength
✔✔Devices that _____ should be on a VLAN. Check all that apply. - ✔✔are in separate
locations; need to communicate mostly with each other; are not intended to share
network segments with other kinds of data
✔✔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
RATED A+
✔✔Which of the following are some of the disadvantages of Wi-Fi networks? Check all
that apply. - ✔✔They are less secure than wired networks.; They are susceptible to
radio interference.
✔✔In the OSI model, the _____ define(s) hardware oriented functions like routing,
switching and cable specifications. - ✔✔media layers
✔✔In the OSI model, the _____ define(s) the protocols and software that implement
network services. - ✔✔host layers
✔✔Which layer of the OSI model applies IP address to packets and routes them to their
destinations? - ✔✔Network
✔✔Which layer of the OSI model initiates and ends communications between devices?
- ✔✔Session
✔✔Which layer of the OSI model sends Ethernet frames to their physical destinations? -
✔✔Data Link
✔✔True or false: Gigabit Ethernet is used as a network backbone, but not to connect
end nodes to switches. - ✔✔FALSE
✔✔True or false: in order to be on the same VLAN, devices must be physically
connected to the same switch. - ✔✔FALSE
✔✔Which of the following accurately describe the functionality of a VLAN? Check all
that apply. - ✔✔Devices on a VLAN can send each other Ethernet frames.; Devices on
a VLAN do not receive broadcast traffic from devices outside the VLAN.
✔✔The term Fast Ethernet refers to _____. - ✔✔100 Mbps Ethernet
✔✔To operate in full-duplex mode, Fast Ethernet requires _____. - ✔✔Cat 5 twisted
pair cable or better
✔✔The main purpose of 40/100 Gigabit Ethernet is to _____. - ✔✔aggregate slower
connections
✔✔The IEEE 802.3 standard defines _____. Check all that apply. - ✔✔a collision
avoidance mechanism for half-duplex networks; Physical Layer requirements for
Ethernet traffic; the data format for Ethernet frames
,✔✔Drag these 10 Gigabit physical media to place them in order from shortest cable run
to longest. - ✔✔1. 10GBaseCX4- Four-conductor balanced shielded twisted pair 2.
10GBaseT- Cat 5e twisted pair cable or better 3. 10GBaseLX4- 62.5/125 microm
multimode optical fiber, 1310 nm wavelength 4. 10GBaseER- 9microm mode optical
fiber, 1550 nm wavelength
✔✔Devices that _____ should be on a VLAN. Check all that apply. - ✔✔are in separate
locations; need to communicate mostly with each other; are not intended to share
network segments with other kinds of data
✔✔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
