9 Apr, 2007
Networking Interview Questions
- Select the correct statements about PPP and SLIP for WAN communications?
* PPP uses its Network Control Programs (NCPs) component to encapsulate multiple protocols.
* PPP can only transport TCP/IP
* SLIP can only transport TCP/IP.
* SLIP uses its Network Control Programs (NCPs) component to encapsulate multiple protocols.
Correct answer: A & C
87a Which protocol for PPP LCP (Link Control Protocol) performs a challenge handshake?
* CHAP
* PAP
* UDP
* IPX
Correct answer: A
87b Which form of PPP error detection on Cisco routers monitors data dropped on a link?
* Quality
* Magic Number
* Error Monitor
* Droplink
Correct answer: A
The Quality protocol monitors data dropped on a link. Magic Number avoids frame looping.
- Which protocol for PPP provides load balancing across multiple links?
* Multilink Protocol (MP)
* Quality
* Magic Number
* Stacker
* Predictor
Correct answer: A
- As the system administrator, you type “ppp authentication chap pap secret”. Which authentication method is used first in setting up a session?
* secret
* PAP
* CHAP
* PPP/SLIP
Correct answer: C
- Select the compression protocols for PPP?
* Stac
* Predictor
* Quality
* Magic Number
Correct answer: A & B
- What are the three phases of PPP session establishment?
* Link establishment phase
* Authentication phase
* Network layer protocol phase
* Handshake phase
* Dial-in phase
Correct answer: A, B & C
- What is the default IPX Ethernet encapsulation?
* SNAP
* Arpa
* 802.2
* Novell-Ether
* SAP
Correct answer: D
- What must be true for two Routers running IGRP to communicate their routes?
* Same autonomous system number
* Connected using Ethernet only
* Use composite metric
D)Configured for PPP
Correct answer: A
- The following is partial output from a routing table, identify the 2 numbers in the square brackets; ‘192.168.10.0 [100/1300] via 10.1.0.1, 00:00:23, Ethernet1′
* 100 = metric, 1300 = administrative distance
* 100 = administrative distance, 1300 = hop count
* 100 = administrative distance, 1300 = metric
* 100 = hop count, 1300 = metric
Correct answer: C
- Identify 3 methods used to prevent routing loops?
* Split horizon
* Holddown timers
* Poison reverse
* SPF algorithm
* LSP’s
Correct answer: A B C
- Which statement is true regarding full duplex?
* Allows for transmission and receiving of data simultaneously
* Only works in a multipoint configuration
* Does not affect the bandwidth
* Allows for transmission and receiving of data but not a the same time
Correct answer: A
Full duplex is just the opposite of half duplex. It handles traffic in both directions simultaneously.
