Sample Technical Interview Questions and Answers for CCNA Networking Job for freshers interview / placement test. Practice Questions related to Cisco asked in networking written recruitment exams and interview.

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How can find information about the IPX Routing update packets?
debug ipx routing activity

What do you understand by 0×4 in the IOS response?
It stands for the Get Nearest Server response.

Which command can be used to monitor ipx traffic on a network?
show ipx traffic can be used for the same.

Which command is used to know the names of Novell servers?
show ipx servers is used for the same.

What are the default settings which can be changed by “ipx delay number” command?
one tick for LAN; six ticks for WAN

Which commands can help set an Ethernet interface on cisco router for both sap and novell ether encapsulations.
The commands used for this are
* interface ethernet 0.1ipx encapsulation Novell-ether ipx network 9e interface ethernet 0.2 ipx encapsulation sap ipx network 6c

What will the following command do “IPX maximum-paths 2?
This command will help load sharin on 2 paths if thes are metric paths.      * It enables load sharing on 2 paths if the paths are equal metric paths.

How can you enable both arp and snap encapsulation on one router interface?
THis can be done by assigning two network numbers one for each type of encapsulation.

How are service advertisements made to other networks.
These are forwarded every 60 seconds as each router makes its own SAP Table.

How fast do the RIP updates routing tables in novell’s implementation?
every 60 seconds.

Name 3 fast ethernet technologies.
These are 100 Base FX, 100 Base T4 and 100 Base TX.

Which OSI Layer is used for providing end to end connections?
The transport layer is used for this purpose.

What do you know about MAC Addresses?
Mac Addresses are 48 bits in length and these have a vendor code as well as a serial number of 24 bits.

What is the filtering range for IPX SAP Filters?
The filtering range is 1000-1099

What is the use of ARP?
It stands for address resolution protocol and it is used for resolution of mac address.

Which OSI layer is used to establish, maintain and terminate the sessions between hosts?
Session layer servers this purpose.

What do you understand by Administrative distance?
It is the trustworthiness of the routing information.

What is the use of ping command.
The ping command is used to test the layer 3 connectivity.

Where is the Cisco IOS stored?
It is stored in flash.

What is the use of Sequence and acknowledgement number?
These are reliable.

What is the use of IPX GNS.
Its full form is Get Nearest Server. It is used to locate the nearest server.

Subnetting borrows bits from the host portion of the address.

What is the use of Inverse ARP?
It is used to introduce the local router to the remote end of the connection.

Which routing protocol helps exchange the entire routing tables regularly?
Distance Vector.

Name the 3 different IP Routing protocols.
RIP, OSPF and IGRP.

List three important characteristics of a MAC Address.
The three characteristics are Burned into the NIC, 48 Bits length and delivering the frame to end device.

Which two metrics are used for making routing decisions.
Ticks and Hops

Which encapsulation type is used on a serial interface?
HDLC

arpa is used …
for Ethernet_II

Which encapsulation types use snap in CISCO IOS?
Ethernet_SNAP, Token Ring and FDDI

WHich type of Ethernet framing is used for TCP/IP and Appletalk?
Ethernet SNAP

TCP/IP and DECnet use which type of Ethernet framing?
Ethernet II

What is the problem in Netware 4.11 if you can’t communicate with your router?
Its defaults to 802.3 encapsulation.

Name the netware protocol which works on 3 network layer of OSI model.
IPX Protocol

Use of NLSP Protocol.
Its provides link state routing.

Which command should you use to debug igrp but not flood the console
debug IP igrp events

What does 109 mean in router igrp 109?
109 is an autonomous system number

A useful feature of IGRP which provides greater reliablility.
unequal cost load balancing

How often does the IGRP broadcast its routing table updates?
Every 90 seconds

WHich information is displayed by “show IP Protocol” command?
The network information and routing timers are displayed by this command.

In RIP, how often the routing updates are broadcasted?
Every 30 seconds.

All routers need to be interconnected, running the same routing protocol and should run only IGRP for an autonomous system to exist.

How does a router learn about destination by default?
Its learns by IGRP

Which command can be used to show the IP address of the routers connected to your router?
show cdp neighbors detail command can be used for this.

How can we prevent routing loops?
Split horizon, Holddown timers and Poison reverse can be used to prevent routing loops.

What is full duplex?
It support the simultaneous transmission and reception of data.

What is the function of ICMP?
It is used to send errors and control messages.

Name the IP Command useful for testing the entire IP Stack.
Telnet

Which hardwares are required to manage a router?
Auxiliary port and a console port are required to manage a router.

Default bandwidth of a serial connection?
The default bandwidth of a serial connection is 1.544 Mbps.

What are the various uses of IPX Access lists?
These are useful to control sap traffic and to block the IPX Traffic.

Important features of HDLC.
It is the default serial encapsulation and is supports point to point and multipoint.

Give examples of 3 IP Applications.
Three examples are Telnet, SMTP and DNS.

Name few LAN Technologies.
FDDI, 802.3 and 802.5 are LAN technologies.

Which OSI layer is used for communication in an application?
The Application layer is used for communication in an application.

What is the length of IPX Address and list the components of IPX.
The length is 80 bits and there are two components called network address of 32 bits and node of 48 bits.

Which OSI layer related the mac address and LLC.
Data link layer

Which encapsulation type is needed to connect a cisco router to a non cisco router across a frame relay network?
IETF  is needed here.

What do the TCP and UDP have in commmon?
Both TCp and UDP are transport protocols and use port numbers for upper level applications.

Important features of IP RIP.
It is a distance vector, has an administrative distance of 120 and it can provide load balance.

Name a layer 3 device.
A Switch is a layer 2 device.

What do you mean by demarcation?
It is the division of responsibility. The CPE Ends and the local loop begins here.

Important properties of Cisco Discovery Protocol.
Important features of cisco discovery protocol are that it verifies connectivity, does not require layer 3 protocols, etc.

List important features of IPX RIP.
It is a distance vector. It updates every 60 seconds and uses ticks and hop count.