Ccna Interview Questions And Answers

Ccna Interview Questions list for experienced

  1. What is ccna?
  2. What is the command use to add a banner to a Cisco router configuration?
  3. How can you assign a VLAN to a switch port?
  4. What is routing?
  5. What is the function of a router?
  6. What is the purpose of a data link?
  7. What is the key advantage of using a switches?
  8. When does network congestion occurs?
  9. What is the difference between switch and hub?
  10. What is subnetting and why it is use?
  11. How does RIP differs from IGRP?
  12. What is a window in networking terms?
  13. What are the differnt memory use in CISCO router?
  14. Whatz the simplest way to remotely configure a router?
  15. Does a bridge divides a network into smaller segments?
  16. What are the two types of transmission technology use in CCNA
  17. What are the possible ways of data exchange in CCNA?
  18. What is frame relay?
  19. What is AD in CCNA?
  20. What is EIGRP?
  21. What is BGP?
  22. What is etherchannel?
  23. Name the VTP modes?
  24. What is HSRP?
  25. What is latency?
  26. What is the function of application layer in networking?
  27. Explain the benefits of VLAN?
  28. What are the advantages of layered model in networking industry?
  29. Which LAN switching method is used in CISCO catalyst 5000?
  30. Differentiate user mode from privileged mode?
  31. What is MTU?
  32. What is BootP?
  33. Differnce between the communication and transmission?
  34. What is the utility of ping?
  35. How do you depict an IP address?
  36. How do you go to privileged mode? How do you switch back to user mode?
  37. What is HDLC?
  38. How are internetworks created?
  39. What is Bandwidth?
  40. How does Hold-downs work?
  41. What are packets?
  42. What are segments?
  43. Give some benefits of LAN switching.
  44. What is Route Poisoning?
  45. How do you find valid hosts in a subnet?
  46. What is DLCI?
  47. Brielfly explain the conversion steps in data encapsulation.
  48. What are the different types of passwords used in securing a CISCO router?
  49. Why is network segmentation a good idea when managing a large network?
  50. What are the things that can be accessed in a CISCO router's identifying information?
  51. Differentiate Logical Topology from Physical Topology
  52. What causes a triggered update to reset the router hold-down timer?
  53. In configuring a router, what command must be used if you want to delete the configuration data that is stored in the NVRAM?
  54. Referring to the commands shown, what command must next be used on the branch router prior to traffic being sent to the router router?
  55. When configuring a router utilizing both physical and logical interfaces, what factor must be considered in determining the OSPF router ID?
  56. Mention what is the difference between the switch, hub, and router?
  57. Mention what does data packets consist of?
  58. Mention what is DHCP?
  59. Mention what is BOOTP?
  60. Explain why is UDP lease favored when compared to TCP?
  61. Mention what is the difference between dynamic IP and static IP addressing?
  62. Mention what are the ranges for the private IPS?
  63. In how many ways you can access router?
  64. Explain what is EIGRP?
  65. Mention what is the matric of EIGRP protocol?
  66. Mention what does the clock rate do?
  67. Mention what command you must use if you want to delete or remove the configuration data that is stored in the NVRAM?
  68. Mention what is the difference between TCP and UDP?
  69. Explain the difference between half-duplex and full-duplex?
  70. Mention the conversion steps of data encapsulation?
  71. What command do we give if router IOS is stucked?
  72. Explain what is route poisoning?
  73. What route entry will be assigned to dead or invalid route in case of RIP?
  74. What is the purpose of the Data Link?
  75. What is the key advantage of using switches?
  76. When does network congestion occur?
  77. Does a bridge divide a network into smaller segments?
  78. What is the role of the LLC sublayer?
  79. How does RIP differ from IGRP?
  80. What are the different memories used in a CISCO router?
  81. What is the function of the Application Layer in networking?
  82. What is 100BaseFX?
  83. Differentiate full-duplex from half-duplex.
  84. How does cut-through LAN switching work?
  85. Utilizing RIP, what is the limit when it comes to number of hops?
  86. What is a Frame Relay?
  87. How do you configure a Cisco router to route IPX?
  88. What are the different IPX access lists?
  89. Explain the benefits of VLANs.
  90. What is subnetting?
  91. What are the advantages of a layered model in the networking industry?
  92. Why is UDP lease favored when compared to TCP?
  93. What are some standards supported by the Presentation layer?
  94. What's the simplest way to remotely configure a router?
  95. What does the show protocol display?

Ccna interview questions and answers on advance and basic Ccna with example so this page for both freshers and experienced condidate. Fill the form below we will send the all interview questions on Ccna also add your Questions if any you have to ask and for apply in Ccna Tutorials and Training course just send a mail on info@pcds.co.in in detail about your self.

Top Ccna interview questions and answers for freshers and experienced

What is Ccna ?

Answer :

Questions : 1 :: What is ccna?

Ccna is cisco certified network associat

Questions : 2 :: What is the command use to add a banner to a Cisco router configuration?

Baneer motd # is use to add a banner to a Cisco router.

Questions : 3 :: How can you assign a VLAN to a switch port?


VLAN are assigned to individual switch ports. Ports can be statically assign to a single VLAN or dynamically assign to a single VLAN. All ports are assign to VLAN 1 by default. Ports are active only...View answers

Questions : 4 :: What is routing?

Routing is the process of finding a path on which data can pass from source to destination. Routing is done by a device called routers, which are network layer devices.

Questions : 5 :: What is the function of a router?

The function of a router are as follows- 1)Packet switching 2)Packet filtering 3)Best path selection to destination 4)Provides inter-network communication.

Questions : 6 :: What is the purpose of a data link?


The job of the Data Link layer is to check messages are sent to the right device. Another function of this layer is framing.

Questions : 7 :: What is the key advantage of using a switches?

When a switch receives a signal, it creates a frame out of the bits that was extracted from that signal. With this process, it gains access and reads the destination address, after which it forwards...View answers

Questions : 8 :: When does network congestion occurs?

Network congestion occurs when too many users are trying to use the same bandwidth. This is especially true in big networks that do not resort to network segmentation.

Questions : 9 :: What is the difference between switch and hub?


1)Switches operates at layer 2 data link layer.Where as hub operates at layer 1 physical layer. 2)The function of a switch is to learn address,where as in hub there is no address...View answers

Questions : 10 :: What is subnetting and why it is use?

Subnetting is breaking up of big networks into smaller sub networks. It is use to reduce network traffic, optimized network performance, and simplify management, i.e to identify and isolate network...View answers

Questions : 11 :: How does RIP differs from IGRP?

RIP relies on the number of hops in order to determine the best route to a network. On the other hand, IGRP takes consideration many factors before it decides the best route to take, such as...View answers

Questions : 12 :: What is a window in networking terms?

A Window refers to the number of segments that is allowed to be sent from source to destination before an acknowledgement is sent back.

Questions : 13 :: What are the differnt memory use in CISCO router?

1)NVRAM stores the startup configuration file 2)DRAM stores the configuration file that is being executed 3)Flash Memory stores the Cisco IOS.

Questions : 14 :: Whatz the simplest way to remotely configure a router?

The most convenient way to configure a router remotely is to use the Cisco AutoInstall Procedure. However, the router must be connected to the WAN or LAN through one of the interfaces.

Questions : 15 :: Does a bridge divides a network into smaller segments?

No. Bridge takes the large network and filter it, without changing the size of the network.

Questions : 16 :: What are the two types of transmission technology use in CCNA

Two types of transmission technology use in CCNA are- 1)Point-to-point. 2)Broadcast.

Questions : 17 :: What are the possible ways of data exchange in CCNA?

There are three possible ways of data exchange- 1)Simplex-The signal be sent away in unidirectional mode. This indicate the signal is sent away form the resource to the destination merely. The...View answers

Questions : 18 :: What is frame relay?

Frame Relay is a WAN protocol that provides connection-oriented communication by creating and maintaining virtual circuits. It has a high performance rating and operates at the Data Link and Physical...View answers

Questions : 19 :: What is AD in CCNA?

AD or Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing...View answers

Questions : 20 :: What is EIGRP?

Enhanced Interior Gateway Routing Protocol (EIGRP) is an open routing protocol loosely based on their original IGRP created by Cisco. EIGRP is an advanced distance-vector routing protocol, with...View answers

Questions : 21 :: What is BGP?

Border Gateway Protocol (BGP) is the protocol which is used to make core routing decisions on the Internet; it involves a table of IP networks or "prefixes" which designate network reachability...View answers

Questions : 22 :: What is etherchannel?

EtherChannel is a port link aggregation technology or port-channel architecture used primarily on Cisco switches. It allows grouping of several physical Ethernet links to create one logical Ethernet...View answers

Questions : 23 :: Name the VTP modes?

There are 3 modes the VTP protocol can operate on any switch throughout the network: 1)VTP server mode-By default all switches are configured as VTP Servers when first powered on. All VLAN...View answers

Questions : 24 :: What is HSRP?

Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol for establishing a fault-tolerant default gateway. HSRP provides network redundancy for IP networks, ensuring that user...View answers

Questions : 25 :: What is latency?

Latency is the amount of time delay that measures the point from which a network device receives a data frame to the time it sends it out again towards another network segment.

Questions : 26 :: What is the function of application layer in networking?

Application Layer supports the communication components of an application and provides network services to application processes that span beyond the OSI reference model specifications. It also...View answers

Questions : 27 :: Explain the benefits of VLAN?

VLANs allow the creation of collision domains by groups other than just physical location. Using VLANs, it is possible to establish networks by different means, such as by function, type of hardware,...View answers

Questions : 28 :: What are the advantages of layered model in networking industry?

A layered network offers many advantages. It allows administrators to make changes in one layer without the need to make changes in the other layers. Specialization is encouraged, allowing the...View answers

Questions : 29 :: Which LAN switching method is used in CISCO catalyst 5000?

This model uses the Store-and-forward switching method. It stores the entire frame to its buffers and performs a crc(cyclical redundancy check) check before deciding whether or not to forward that...View answers

Questions : 30 :: Differentiate user mode from privileged mode?

User Mode is used for regular task when using a CISCO router, such as to view system information, connecting to remote devices, and checking the status of the router. On the other hand, privileged...View answers

Questions : 31 :: What is MTU?

MTU stands for Maximum Transmission Unit. It refers to the maximum packet size that can be sent out onto the data line without the need to fragment it.

Questions : 32 :: What is BootP?

BootP is a protocol that is used to boot diskless workstations that are connected to the network. It is short for Boot Program. Diskless workstations also use BootP in order to determine its own IP...View answers

Questions : 33 :: Differnce between the communication and transmission?

Communication is the process of sendind and receiving data by means of data cables that are connected externally. Transmission means transfer of data from the source to the destination.

Questions : 34 :: What is the utility of ping?

PING - Packet Internet Gopher A utility that verifies connections to one or more remote hosts. The ping command uses the ICMP echo request and echo reply packets to determine whether a particular IP...View answers

Questions : 35 :: How do you depict an IP address?

It can be done in three possible ways: – using Dotted-decimal. For example: 192.168.0.1 – using Binary. For example: 10000010.00111011.01110010.01110011 – using Hexadecimal. For...View answers

Questions : 36 :: How do you go to privileged mode? How do you switch back to user mode?

To access privileged mode, you enter the command “enable” on the prompt. In order to get back to user mode, enter the command “disable”

Questions : 37 :: What is HDLC?

HDLC is short for High Level Data Link Control protocol, and is a propriety protocol of CISCO. It is the default encapsulation operated within CISCO routers.

Questions : 38 :: How are internetworks created?

nternetworks are created when networks are connected using routers. Specifically, the network administrator assigns a logical address to every network that connects to the router.

Questions : 39 :: What is Bandwidth?

Bandwidth refers to the transmission capacity of a medium. It is a measure of how much volume a transmission channel can handle, and is measured in Kbps.

Questions : 40 :: How does Hold-downs work?

Hold-downs prevent regular update messages from reinstating a downed link by removing that link from update messages. It uses triggered updates to reset the hold-down timer.

Questions : 41 :: What are packets?

Packets are the results of data encapsulation. These are data that has been wrapped under the different protocols of the OSI layers. Packets are also referred to as datagrams.

Questions : 42 :: What are segments?

Segments are sections of a data stream that comes from the upper OSI layers and ready for transmission towards the network. Segments are the logic units at the Transport Layer.

Questions : 43 :: Give some benefits of LAN switching.

allows full duplex data transmission and reception – media rate adaption – easy and efficient migration

Questions : 44 :: What is Route Poisoning?

Route Poisoning is the process of inserting a table entry of 16 to a route, making it unreachable. This technique is used in order to prevent problems caused by inconsistent updates on a route.

Questions : 45 :: How do you find valid hosts in a subnet?

The best way to go about this is to use the equation 256 minus the subnet mask. The hosts that are considered valid are those that can be found between the subnets.

Questions : 46 :: What is DLCI?

DLCI, or Data Link Connection Identifiers, are normally assigned by a frame relay service provider in order to uniquely identify each virtual circuit that exists on the network.

Questions : 47 :: Brielfly explain the conversion steps in data encapsulation.

From a data transmitter’s point of reference, data from the end user is converted to segments. Segments are then passed on to the other layers and converted into packets or datagrams. These...View answers

Questions : 48 :: What are the different types of passwords used in securing a CISCO router?

There are actually five types of passwords that can be used. These are enable secret, enable, virtual terminal, console, and auxiliary.

Questions : 49 :: Why is network segmentation a good idea when managing a large network?

For a network administration, segmenting a network would help ease network traffic and ensures that high bandwidth is made available at all times for all users. This translates to better performance...View answers

Questions : 50 :: What are the things that can be accessed in a CISCO router's identifying information?

The hostname and the Interfaces. The hostname is the name of your router. The Interfaces are fixed configurations that refer to the router ports.

Questions : 51 :: Differentiate Logical Topology from Physical Topology

Logical Topology refers to the signal path through the physical topology. Physical Topology is the actual layout of the network medium.

Questions : 52 :: What causes a triggered update to reset the router hold-down timer?

This may happen when the hold-down timer has already expired, or when the router received a processing task that incidentally was proportional to the number of links in the internetwork.

Questions : 53 :: In configuring a router, what command must be used if you want to delete the configuration data that is stored in the NVRAM?

A. erase running-config B. erase startup-config C. erase nvram D. delete nvram Correct Answer: B. erase startup-config

Questions : 54 :: Referring to the commands shown, what command must next be used on the branch router prior to traffic being sent to the router router?

Hostname: Branch Hostname: Remote PH# 123-6000, 123-6001 PH# 123-8000, 123-8001 SPID1: 32055512360001 SPID1: 32055512380001 SPID2: 32055512360002 SPID2: 32055512380002 isdn switch-type basic ni...View answers

Questions : 55 :: When configuring a router utilizing both physical and logical interfaces, what factor must be considered in determining the OSPF router ID?

A. The highest IP address of any physical interface. B. The lowest IP address of any logical interface. C. The middle IP address of any logical interface.. D. The lowest IP address of any physical...View answers

Questions : 56 :: Mention what is the difference between the switch, hub, and router?

Hub Switch Router Hub has single broadcast domain and collision domain. Anything comes in one port is sent out to the others.  It is a device that filters and forwards packets...View answers

Questions : 57 :: Mention what does data packets consist of?

A data packet consists of sender’s information, recipient’s information, and the data contained.  It also has the numeric identification number that defines the packet number and...View answers

Questions : 58 :: Mention what is DHCP?

DHCP stands for Dynamic Host Configuration Protocol.  DHCP assigns an IP address automatically to a given workstation client.  You can also make static IPS for machines like printers,...View answers

Questions : 59 :: Mention what is BOOTP?

BOOTP is a computer networking protocol used to deploy an IP address to network devices from a configuration server

Questions : 60 :: Explain why is UDP lease favored when compared to TCP?

It is because UDP is un-sequenced and unreliable. It is not capable of creating virtual circuits and acknowledgments

Questions : 61 :: Mention what is the difference between dynamic IP and static IP addressing?

Dynamically IP addresses are provided by DHCP server and static IP address are given manually.

Questions : 62 :: Mention what are the ranges for the private IPS?

Ranges for private IPS are Class A: 10.0.0.0 – 10.0.0.255 Class B: 172.16.0.0 – 172.31.0.0 Class C: 192.168.0.0 – 192.168.0.255

Questions : 63 :: In how many ways you can access router?

You can access it in three ways Telnet (IP) AUX (Telephone) Console (Cable)

Questions : 64 :: Explain what is EIGRP?

EIGRP stands for Enhanced Interior Gateway Routing Protocol; it is a routing protocol designed by Cisco Systems.  It is availed on a router to share routes with other routers within the same...View answers

Questions : 65 :: Mention what is the matric of EIGRP protocol?

EIGRP protocol consists of Bandwidth Load Delay Reliability MTU Maximum Transmission Unit  

Questions : 66 :: Mention what does the clock rate do?

Clockrate enables the routers or DCE equipment to communicate properly.

Questions : 67 :: Mention what command you must use if you want to delete or remove the configuration data that is stored in the NVRAM?

Erase startup- coding is the command you must use if you want to delete the configuration data that is stored in the NVRAM

Questions : 68 :: Mention what is the difference between TCP and UDP?

TCP and UDP both are protocols for sending files across computer network              TCP (Transmission Control Protocol)...View answers

Questions : 69 :: Explain the difference between half-duplex and full-duplex?

Full duplex means that the communication can occur in both directions at the same time, while half duplex means that the communication can occur in one direction at time.

Questions : 70 :: Mention the conversion steps of data encapsulation?

Conversion steps of data encapsulation includes   Layer one, two and Three ( Application/presentation/session) : Alphanumeric input from the user is converted into Data Layer Four...View answers

Questions : 71 :: What command do we give if router IOS is stucked?

Cntrl+Shift+F6 and X is the command we give if router IOS is stucked.

Questions : 72 :: Explain what is route poisoning?

Route poisoning is a technique of preventing a network from transmitting packets through a route that has become invalid.

Questions : 73 :: What route entry will be assigned to dead or invalid route in case of RIP?

 What route entry will be assigned to dead or invalid route in case of RIP?

Questions : 74 :: What is the purpose of the Data Link?

The job of the Data Link layer is to check messages are sent to the right device. Another function of this layer is framing.

Questions : 75 :: What is the key advantage of using switches?

When a switch receives a signal, it creates a frame out of the bits that was extracted from that signal. With this process, it gains access and reads the destination address, after which it forwards...View answers

Questions : 76 :: When does network congestion occur?

Network congestion occurs when too many users are trying to use the same bandwidth. This is especially true in big networks that do not resort to network segmentation.

Questions : 77 :: Does a bridge divide a network into smaller segments?

Not really. What a bridge actually does is to take the large network and filter it, without changing the size of the network.

Questions : 78 :: What is the role of the LLC sublayer?

The LLC sublayer, short for Logical Link Control, can provide optional services to an application developer. One option is to provide flow control to the Network layer by using stop/start codes. The...View answers

Questions : 79 :: How does RIP differ from IGRP?

RIP relies on the number of hops in order to determine the best route to a network. On the other hand, IGRP takes consideration many factors before it decides the best route to take, such as...View answers

Questions : 80 :: What are the different memories used in a CISCO router?

NVRAM stores the startup configuration file – DRAM stores the configuration file that is being executed – Flash Memory – stores the Cisco IOS.

Questions : 81 :: What is the function of the Application Layer in networking?

The Application Layer supports the communication components of an application and provides network services to application processes that span beyond the OSI reference model specifications. It also...View answers

Questions : 82 :: What is 100BaseFX?

This is Ethernet that makes use of fiber optic cable as the main transmission medium. The 100 stands for 100Mbps, which is the data speed.

Questions : 83 :: Differentiate full-duplex from half-duplex.

In full-duplex, both the transmitting device and the receiving device can communicate simultaneously, that is, both can be transmitting and receiving at the same time. In the case of half-duplex, a...View answers

Questions : 84 :: How does cut-through LAN switching work?

In Cut-Through LAN switching, as soon as the router receives the data frame, it will immediately send it out again and forward it to the next network segment after reading the destination...View answers

Questions : 85 :: Utilizing RIP, what is the limit when it comes to number of hops?

The maximum limit is 15 hop counts. Anything higher than 15 indicates that the network is considered unreachable.

Questions : 86 :: What is a Frame Relay?

Frame Relay is a WAN protocol that provides connection-oriented communication by creating and maintaining virtual circuits. It has a high performance rating and operates at the Data Link and Physical...View answers

Questions : 87 :: How do you configure a Cisco router to route IPX?

The initial thing to do is to enable IPX routing by using the “ipx routing” command. Each interface that is used in the IPX network is then configured with a network number and...View answers

Questions : 88 :: What are the different IPX access lists?

There are two access lists: Standard and Extended. Standard Access List can only filter the source or destination IP address. An Extended Access List uses the source and destination IP addresses,...View answers

Questions : 89 :: Explain the benefits of VLANs.

VLANs allow the creation of collision domains by groups other than just physical location. Using VLANs, it is possible to establish networks by different means, such as by function, type of hardware,...View answers

Questions : 90 :: What is subnetting?

Subnetting is the process of creating smaller networks from a big parent network. Being a part of a network, each subnet is assigned some additional parameters or identifier to indicate its subnet...View answers

Questions : 91 :: What are the advantages of a layered model in the networking industry?

A layered network offers many advantages. It allows administrators to make changes in one layer without the need to make changes in the other layers. Specialization is encouraged, allowing the...View answers

Questions : 92 :: Why is UDP lease favored when compared to TCP?

It’s because UDP is unreliable and unsequenced. It is not capable of establishing virtual circuits and acknowledgements.

Questions : 93 :: What are some standards supported by the Presentation layer?

Presentation layer supports many standards, which ensures that data is presented correctly. These include PICT, TIFF and JPEG for graphics, MIDI, MPEG and QuickTime for Video/Audio.

Questions : 94 :: What's the simplest way to remotely configure a router?

n cases when you need to configure a router remotely, the most convenient is to use the Cisco AutoInstall Procedure. However, the router must be connected to the WAN or LAN through one of the...View answers

Questions : 95 :: What does the show protocol display?

routed protocols that is configured on the router – the address assigned on each interface – the encapsulation method that was configured on each interface
More Question

Ask your interview questions on Ccna

Write Your comment or Questions if you want the answers on Ccna from Ccna Experts
Name* :
Email Id* :
Mob no* :
Question
Or
Comment* :
 





Disclimer: PCDS.CO.IN not responsible for any content, information, data or any feature of website. If you are using this website then its your own responsibility to understand the content of the website

--------- Tutorials ---