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CCNA Interview Questions
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Station A is transmitting data to station B, and expects an acknowledgment after every 400 bytes. After transmitting data for a while, the two stations determine the line is reliable and change to expecting and acknowledgement every 600 bytes. This is an example of (pick the best answer only): A.) BECN B.) Sliding Windows C.) Poison Reverse D.) Countdown timers E.) Split Horizon F.) Count to infinity

1 2793

Which device listed below provides clocking for the line? A.) DCE B.) CPE C.) CO D.) DTE E.) Demarc

2 5393

Which OSI Reference Layer controls application to application communication? A.) Datalink B.) Network C.) Transport D.) Session E.) Physical

3 4647

The Datalink Layer is broken down into 2 layers, LLC and MAC. The LLC establishes media independence and what else? A.) Provides Windowing. B.) Provides flow control. C.) Provides SAP's (Service Access Points). D.) The Datalink layer does not have sublayers. E.) Provides SAP's (Service Advertising Protocol). F.) RIP Updates.

2 7258

When a Distance Vector routing protocol detects that a connected network has gone down, it sends out a special routing update packet, telling all directly connected routers that the distance to the dead network is infinity. This is an example of which routing technology? A.) ICMP. B.) Only Link State routing protocols have this intelligence. C.) Triggered updates. D.) Garrison-4. E.) Split Horizon. F.) Poison Reverse.

1 3858

Which of the following would not be displayed by the command ?sho cdp neighbor detail?? A.) The incoming/outgoing interface. B.) The hardware platform. C.) One address per protocol. D.) Amount of Flash Memory Available E.) The routers hostname. F.) The subnet mask, if IP is configured.

1 3187

Which of the following are characteristics of UDP? A.) UDP is connection oriented. B.) UDP is used with TFTP. C.) UDP is unreliable. D.) UDP is connectionless. E.) UDP is at the transport layer. F.) UDP uses no acknowledgements.

6 14924

What is a characteristic of Store and Forward switches? A.) They work at wire speed. B.) They are the same as Cut-Through switching in 'prune' mode. C.) They forward based on transport layer info. D.) They forward the frame before it is completely read. E.) They increase latency.

2 5884

The Internet Protocol (IP) occurs at what layer of the seven layer model? A.) Physical B.) Presentation C.) Network D.) Datalink E.) Session F.) Transport

2 3313

In regards to TCP/IP, which class of address allows for the fewest valid Internet hosts? A.) D B.) E C.) Classes are not used in TCP/IP. D.) B E.) C F.) A

1 3341

For IPX, what is the DEFAULT Cisco Encapsulation on an Ethernet interface? A.) novell-ether B.) gns C.) snap D.) arpa E.) sap F.) dix

1 2966

Novell NetWare has an Ethernet frame type called Ethernet_II. What is the matching Cisco command line keyword for this encapsulation method? A.) dix B.) sap C.) arpa D.) gns E.) snap F.) novell-ether

1 3026

There are 2 types of PPP authentication supported by the Cisco IOS. What are they? A.) PAP B.) PREDICTOR C.) MD5 D.) CHAP E.) STACKER F.) MSCHAP

4 6535

Which of the following are examples of the Transport Layer? A.) Token Ring B.) UDP C.) TCP D.) IP E.) SQL F.) LLC

2 3760

Which of the following describe SMTP? A.) Used for downloading files to the router. B.) Used for sending e-mail. C.) Uses TCP. D.) Uses UDP. E.) Uses port 25. F.) Used for managing IP devices.

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Un-Answered Questions { CCNA }

Suppose we have some switch in network and we are running RSTP how much convergence time will be there if one link down


What are packets?


What is the mesh network?


Which type of routing you did in ccna?


What is the difference between the switch, hub, and router?


What is point-to-point protocol in ccna?


Explain the benefits of VLANs.


What is loop back ip in ipv6?


In configuring a router, what command must be used if you want to delete the configuration data that is stored in the NVRAM?


On which layer does L2F, PPTP and L2TP operate?


What is the default bandwidth size of t1 routers?


What is the difference between an igp and an egp?


What is the difference between ‘bit rate’ and ‘baud rate’?


Tell me why we use filter option?


What are the different layers of osi model?