10 CCENT, CCNA, CCNP Interview Questions

Q-1 What type of routing protocol maintains neighbors?

Answer-Link State

Q-2 what is the range of values ​​for administrative distance?

Answer: 0-255

Q-3 Describe the difference between unicast, multicast and broadcast traffic?

Answer: Unicast traffic flows from one source to one destination MAC address. Multicast traffic flows from a single source MAC address to multiple destinations and uses a functional MAC address. Broadcast traffic is from a single source for all devices on the Ethernet segment. This is specified by a destination MAC address of all ones.

Q-4 What are the four different types of Ethernet encapsulation?

Answer: From the command IPX Cisco Encapsulation ARPA, NOVELL-ETHER, SAP and SNAP

Q-5 What are the three main tasks of a transparent bridge?

Answer: Learning, Forwarding, Filtering

Q-6 What type of routing protocol is EIGRP?

Response: Hybrid

Q-7 Although the resolution of a problem of connectivity in the network, run the ping command from the PC command prompt, but the output shows "request timed out." Which OSI layer is associated with this problem?

Answer: The network layer

Q-8 What algorithm does OSPF use to calculate its route table?

Answer: OSPF uses the shortest path first (SPF) algorithm, which is also known as Dijkstra's algorithm.

Q-9 What is a stub zone?

Answer: A stub zone is an area that does not accept routing updates outside its autonomous system.

Q-10 What is the TTL of an IP packet to do?

Answer: The TTL field indicates the maximum time that can be a packet on the network. Each router that processes the packet decrements the TTL value of 1. If the value reaches zero, the packet is discarded by the network. The purpose of this field is to eliminate the possibility of a packet endlessly through the network ....