What is the purpose of a default route in a network

• To route all traffic to a specific network
• To provide a path for packets when there is no specific entry in the routing table for the destination IP address
• To prevent certain traffic from reaching a specific network
• To direct all traffic through a specific gateway

Which layer of the OSI model is responsible for end-to-end communication and error checking

• Network
• Transport
• Data Link
• Session

What is the main difference between single-mode fiber and multimode fiber

• The type of data they can carry
• The distance they can transmit data over
• The number of transmission modes they support
• The type of connectors they use

In a Cisco router which command is used to configure a static route

• route add
• ip route
• static route
• route set

What is a collision in the context of a network

• When two nodes try to transmit at the same time
• When a packet is dropped due to a full buffer
• When two packets arrive at a destination at the same time
• When a node receives two packets with the same sequence number

What is the main difference between TCP and UDP

• TCP is connection-oriented UDP is connectionless
• TCP is faster than UDP
• UDP supports error checking TCP does not
• TCP is used for data transmission UDP for control messages

What is the purpose of subnetting in an IPv4 network

• To divide an IP address space into smaller networks
• To increase the speed of data transmission
• To increase the security of the network
• To simplify the configuration of the network

What is the main reason for using private IPv4 addresses

• To ensure that devices on the network can communicate with the internet
• To prevent IP address conflicts
• To save public IP addresses
• To increase the security of the network

What is the main difference between public and private IPv4 addresses

• Public addresses can be routed on the internet private addresses cannot
• Public addresses are assigned by the network administrator private addresses are assigned automatically
• Public addresses are used for internal network communication private addresses for external communication
• Public addresses require a subnet mask private addresses do not

What is the main difference between RIP and EIGRP

• RIP is a distance-vector protocol EIGRP is a link-state protocol
• RIP supports only IPv4 EIGRP supports both IPv4 and IPv6
• RIP uses hop count as a metric EIGRP uses bandwidth and delay
• RIP is a Cisco-proprietary protocol EIGRP is an open standard