CMIT 265 Mock Practice Exam 2026 | Questions &
Answers PDF
1. What is the primary purpose of Ethernet Bonding in networking?
To assign IP addresses to network devices.
To encrypt data transmitted over Ethernet connections.
To combine multiple Ethernet connections for increased bandwidth
and redundancy.
To manage network traffic through a central device.
2. APIPA addresses are valid only for communications within a network segment
that a given host is connected to. A host with APIPA-assigned address (i.e. an
IP address in the range between 169.254.0.1 and 169.254.255.254) cannot
connect to the Internet. The assignment of APIPA address typically indicates a
problem related to:
SNMP (Simple Network Management Protocol)
DNS (Domain Name Server/Service)
DHCP (Dynamic Host Configuration Protocol)
SMTP (Simple Mail Transfer Protocol)
3. Explain the difference between a switch and a router in networking.
A switch connects devices within the same network and forwards
data based on MAC addresses, while a router connects different
networks and forwards data based on IP addresses.
A switch operates at the network layer, while a router operates at the
data link layer.
A switch is used for wireless connections, whereas a router is used for
wired connections.
, A switch can only connect computers, while a router can connect any
type of device.
4. What is another name for an all-in-one security appliance?
Layered Management Application Firewall
Unified Threat Management (UTM)
This is nothing but a marketing term - they don't really exist
A Honeypot
5. What is the primary function of a packet sniffer in networking?
To identify the types of traffic on a network
To configure network devices
To encrypt data packets
To establish network connections
6. __________ maps a single routable (that is, not private) IP address to a single
machine, enabling you to access that machine from outside the network.
Dynamic NAT
Source NAT
Static NAT
Destination NAT
7. Describe how 'nslookup' can assist in diagnosing DNS issues.
Nslookup automatically fixes DNS misconfigurations.
Nslookup encrypts DNS queries to enhance security.
, Nslookup helps diagnose DNS issues by allowing users to query
DNS records and verify if a domain name resolves to the correct IP
address.
Nslookup configures DNS servers to improve response times.
8. Describe the significance of a MAC address in networking.
A MAC address is a protocol used for routing data packets.
A MAC address uniquely identifies a network interface on a local
network, allowing devices to communicate with each other.
A MAC address determines the speed of a network connection.
A MAC address is used to encrypt data transmitted over the internet.
9. If a network is experiencing issues with data not reaching its intended
destination, which device's functionality should be examined first, and why?
The router, because it manages traffic between different networks.
The modem, because it connects the network to the internet.
The firewall, because it controls access to the network.
The switch, because it operates at the Data Link layer and is
responsible for directing traffic within the local network.
10. Describe the primary purpose of the IS-IS protocol in networking.
IS-IS is used for routing information within a network, allowing
routers to communicate and determine the best paths for data
transmission.
IS-IS is a security protocol that encrypts data packets.
IS-IS is a network management tool for monitoring traffic.
IS-IS is a device used to connect different network segments.
, 11. 14: Teredo is primarily designed to provide IPv6 connectivity for which type
of devices or networks?
Mobile devices
IPv4-only devices
IPv6-only devices
Dual-stack devices
12. What is the primary purpose of a port scanner in networking?
To identify open ports on a networked device
To assign IP addresses
To encrypt data packets
To monitor network traffic
13. What is the default port number for SMTP?
25
443
80
110
14. If a network administrator wants to configure a firewall to allow FTP traffic,
which port should they ensure is open?
22
80
25
21
Answers PDF
1. What is the primary purpose of Ethernet Bonding in networking?
To assign IP addresses to network devices.
To encrypt data transmitted over Ethernet connections.
To combine multiple Ethernet connections for increased bandwidth
and redundancy.
To manage network traffic through a central device.
2. APIPA addresses are valid only for communications within a network segment
that a given host is connected to. A host with APIPA-assigned address (i.e. an
IP address in the range between 169.254.0.1 and 169.254.255.254) cannot
connect to the Internet. The assignment of APIPA address typically indicates a
problem related to:
SNMP (Simple Network Management Protocol)
DNS (Domain Name Server/Service)
DHCP (Dynamic Host Configuration Protocol)
SMTP (Simple Mail Transfer Protocol)
3. Explain the difference between a switch and a router in networking.
A switch connects devices within the same network and forwards
data based on MAC addresses, while a router connects different
networks and forwards data based on IP addresses.
A switch operates at the network layer, while a router operates at the
data link layer.
A switch is used for wireless connections, whereas a router is used for
wired connections.
, A switch can only connect computers, while a router can connect any
type of device.
4. What is another name for an all-in-one security appliance?
Layered Management Application Firewall
Unified Threat Management (UTM)
This is nothing but a marketing term - they don't really exist
A Honeypot
5. What is the primary function of a packet sniffer in networking?
To identify the types of traffic on a network
To configure network devices
To encrypt data packets
To establish network connections
6. __________ maps a single routable (that is, not private) IP address to a single
machine, enabling you to access that machine from outside the network.
Dynamic NAT
Source NAT
Static NAT
Destination NAT
7. Describe how 'nslookup' can assist in diagnosing DNS issues.
Nslookup automatically fixes DNS misconfigurations.
Nslookup encrypts DNS queries to enhance security.
, Nslookup helps diagnose DNS issues by allowing users to query
DNS records and verify if a domain name resolves to the correct IP
address.
Nslookup configures DNS servers to improve response times.
8. Describe the significance of a MAC address in networking.
A MAC address is a protocol used for routing data packets.
A MAC address uniquely identifies a network interface on a local
network, allowing devices to communicate with each other.
A MAC address determines the speed of a network connection.
A MAC address is used to encrypt data transmitted over the internet.
9. If a network is experiencing issues with data not reaching its intended
destination, which device's functionality should be examined first, and why?
The router, because it manages traffic between different networks.
The modem, because it connects the network to the internet.
The firewall, because it controls access to the network.
The switch, because it operates at the Data Link layer and is
responsible for directing traffic within the local network.
10. Describe the primary purpose of the IS-IS protocol in networking.
IS-IS is used for routing information within a network, allowing
routers to communicate and determine the best paths for data
transmission.
IS-IS is a security protocol that encrypts data packets.
IS-IS is a network management tool for monitoring traffic.
IS-IS is a device used to connect different network segments.
, 11. 14: Teredo is primarily designed to provide IPv6 connectivity for which type
of devices or networks?
Mobile devices
IPv4-only devices
IPv6-only devices
Dual-stack devices
12. What is the primary purpose of a port scanner in networking?
To identify open ports on a networked device
To assign IP addresses
To encrypt data packets
To monitor network traffic
13. What is the default port number for SMTP?
25
443
80
110
14. If a network administrator wants to configure a firewall to allow FTP traffic,
which port should they ensure is open?
22
80
25
21
