CCNA 2

Question 1

Define routing.

Answer 1

The process of selecting paths in a network along which to send data packets.

Question 2

What does NAT stand for?

Answer 2

Network Address Translation; it translates private IP addresses to a public IP.

Question 3

True or false: Static routing requires manual configuration.

Answer 3

TRUE

Static routes do not change unless manually altered.

Question 4

Fill in the blank: OSPF stands for _______.

Answer 4

Open Shortest Path First.

Question 5

What is the purpose of VLANs?

Answer 5

To segment a network into separate broadcast domains for improved performance and security.

Question 6

Define subnetting.

Answer 6

The practice of dividing a network into smaller, manageable subnetworks.

Question 7

What does DHCP do?

Answer 7

It automatically assigns IP addresses to devices on a network.

Question 8

True or false: RIP is a distance-vector routing protocol.

Answer 8

TRUE

RIP uses hop count as its routing metric.

Question 9

Fill in the blank: ACL stands for _______.

Answer 9

Access Control List.

Question 10

What is the purpose of trunking?

Answer 10

To allow multiple VLANs to traverse a single network link.

Question 11

Define default gateway.

Answer 11

The device that routes traffic from a local network to external networks.

Question 12

What does STP prevent?

Answer 12

It prevents loops in a network by blocking redundant paths.

Question 13

True or false: Ethernet is a type of WAN technology.

Answer 13

FALSE

Ethernet is primarily used in LANs.

Question 14

Fill in the blank: IPv6 addresses are _______ bits long.

Answer 14

128

Question 15

What is a broadcast domain?

Answer 15

A logical division of a network where all nodes can receive broadcast messages.

Question 16

Define firewall.

Answer 16

A security device that monitors and controls incoming and outgoing network traffic.

Question 17

What does QoS stand for?

Answer 17

Quality of Service; it prioritizes certain types of network traffic.

Question 18

True or false: ICMP is used for error messages and operational information.

Answer 18

TRUE

ICMP is commonly used in tools like ping.

Question 19

Fill in the blank: BGP stands for _______.

Answer 19

Border Gateway Protocol.

Question 20

What is the function of VPN?

Answer 20

To create a secure connection over a less secure network.

Question 21

Define load balancing.

Answer 21

The distribution of network traffic across multiple servers to ensure reliability.

Question 22

What does MPLS stand for?

Answer 22

Multiprotocol Label Switching; it directs data from one node to the next based on short path labels.

Question 23

True or false: WPA2 is a security protocol for wireless networks.

Answer 23

TRUE

WPA2 provides stronger security than its predecessor, WPA.

Question 24

Fill in the blank: SLAAC stands for _______.

Answer 24

Stateless Address Autoconfiguration.

Question 25

What is a **mesh topology**?

Answer 25

A network topology where each node connects to multiple other nodes.

Question 26

Define **port forwarding**.

Answer 26

The process of redirecting communication requests from one address and port to another.

Question 27

What does **TFTP** stand for?

Answer 27

**Trivial File Transfer Protocol**; a simple protocol for transferring files.

Question 28

True or false: **RADIUS** is used for authentication and accounting.

Answer 28

TRUE ## Footnote RADIUS centralizes user authentication for network access.

Question 29

Fill in the blank: **SYN** is a type of _______ packet.

Answer 29

**TCP**.

Question 30

What is a **proxy server**?

Answer 30

A server that acts as an intermediary for requests from clients seeking resources from other servers.

Question 31

Define **network topology**.

Answer 31

The arrangement of different elements (links, nodes) in a computer network.

Question 32

What does **EIGRP** stand for?

Answer 32

**Enhanced Interior Gateway Routing Protocol**.

Question 33

True or false: **SNMP** is used for network management.

Answer 33

TRUE ## Footnote SNMP allows monitoring and managing network devices.

Question 34

Fill in the blank: **LAN** stands for _______.

Answer 34

**Local Area Network**.

Question 35

What is the purpose of **network segmentation**?

Answer 35

To improve performance and security by dividing a network into smaller parts.

Question 36

Define **IP address**.

Answer 36

A unique identifier for a device on a network, used for communication.

Question 37

What does **SSL** stand for?

Answer 37

**Secure Sockets Layer**; a protocol for establishing a secure connection.

Question 38

True or false: **IPv4** addresses are 64 bits long.

Answer 38

FALSE ## Footnote IPv4 addresses are 32 bits long.

Question 39

Fill in the blank: **OSI** stands for _______.

Answer 39

**Open Systems Interconnection**.