141 LMI operates between the Frame Switch and what other device?
A.) CPE device
B.) Another Frame Switch
C.) X.25 switch
D.) Novell File Server
Ans A
LMI stands for local management interface. It operates between the Frame Relay switch and the customer equipment.
142 Identify IPX SAP and it's purpose?
A.) Sonet Access Pipe - interface to Sonet ring
B.) Service Advertising Protocol - advertise services
C.) Server Appletalk Protocol - appletalk directory services
D.) Service Access Point - identify upper layer protocols
Ans B
SAP is an Novell protocol to advertise services.
143 Identify the default values that make up IGRP's composite metric?
A.) Bandwidth
B.) Load
C.) Reliability
D.) MTU
E.) Delay
Ans A E
IGRP can be configured to use all 5 within it's metric. By default it uses bandwidth and delay.
144 Identify the default serial encapsulation?
A.) ISDN
B.) HDLC
C.) SDLC
D.) Frame Relay
E.) PPP
Ans B
The default serial encapsulation is HDLC.
145 Identify the purpose of ARP?
A.) Avoiding routing loops
B.) Determining a workstation's IP address
C.) Sending a directed broadcast
D.) Determining a workstation's MAC address
Ans D
ARP is used to find a devices MAC address given an IP address.
146 What is the purpose of the DLCI?
A.) Identifies the remote routers
B.) Contained with a 802.2 frame for routing purposes
C.) Used with PPP during authentication
D.) Identifies the PVC in a Frame Relay network
Ans D
DLCI stands for Data Link Connection Identifier. It identifies the local PVC.
147 Identify 3 characteristics of the Network layer (OSI layer 3)?
A.) Connection oriented
B.) Path determination
C.) Supports multiplexing
D.) Manages sessions
E.) Packet forwarding
Ans B C E
The network layer is responsible for routing which entails learning the paths, selecting the best path and forwarding the packet. Because it services multiple layer 4 protocols it multiplexes.
148 Identify 3 characteristics of switches?
A.) Increase available bandwidth
B.) Decrease broadcast traffic
C.) Support full duplex in a multipoint topology
D.) Make forwarding decision using MAC address
E.) Create collision domains
Ans A D E
Switches operate at layer 2. They increase bandwidth by reducing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon layer 2 address/ MAC address.
149 Which OSI layer handles physical address, network topology?
A.) Presentation
B.) Physical
C.) Transport
D.) Application
E.) Data-Link
F.) Network
Ans E
Layer 2 the Data-Link layer performs this function.
150 Identify 2 reasons for disabling CDP?
A.) If the router is not configured for RIP
B.) Save bandwidth by eliminating overhead
C.) If the router is configured for Appletalk
D.) When connected to a non-Cisco router
Ans B D
CDP can be disabled here are a couple of reasons. Connecting a Cisco router to a non-Cisco router. Don't want to exchange CDP information to save bandwidth.
CCNA Official Exam Certification Library (Exam 640-802), Third Edition (Containing ICND1 and ICND2 Second Edition Exam Certification Guides)
151 Identify 3 characteristics of ISDN?
A.) Transports voice and data
B.) Transports voice only
C.) Support both BRI and PRI
D.) Runs over existing phone lines
E.) Same as X.25
Ans A C D
ISDN supports voice, data, and video. It runs over existing phone lines and supports 128K (BRI) and T1 (PRI).
152 Identify the 3 characteristics of IGRP?
A.) Uses hop count as a metric
B.) Supports multiple unequal paths
C.) Administrative distance is 100
D.) Configured with an Autonomous system number
E.) Link state
Ans B C D
IGRP is a distance vector routing protocol, it's degree of trustworthiness is 100, it can support up to 6 un-equal paths and must be configured with an autonomous system number.
153 Identify 2 features of PPP CHAP authentication?
A.) Username and password is sent in clear text
B.) Authentication messages are sent periodically during the connection
C.) Less secure then PAP
D.) Local router 'challenges' the remote router
Ans B D
PPP CHAP authentication message are sent periodically during the connection by challenging the other end of the connection.It is more secure than PAP and passwords and username are encrypted.
154 Identify the default IPX serial encapsulation?
A.) Novell-Ether
B.) SDLC
C.) SNAP
D.) HDLC
Ans D
The default IPX serial encapsulation is HDLC.
155 Identify the hardware component that stores the backup configuration?
A.) RAM
B.) NVRAM
C.) Flash
D.) ROM
Ans B
NVRAM contains the backup config. RAM is the dynamic memory area, ROM contains the boot strap code and Flash contains the IOS.
156 Identify the extended IP access-list number range?
A.) 600 - 699
B.) 1 - 99
C.) 900 - 999
D.) 100 - 199
Ans D
The extended IP access-list range is 100-199.
157 Identify 3 Fast Ethernet technologies?
A.) 100 Base FastEther
B.) 100 Base FX
C.) 100 Base T4
D.) 100 Base TX
Ans B C D
100 BaseFastEther is false. 100 Base FX, TX and T4 are all valid.
158 Identify the OSI layer which is responsible for end-to-end connections?
A.) Network
B.) Transport
C.) Session
D.) Data link
E.) TCP
Ans B
Layer 4 is the Transport layer and is responsible for end-to-end connections.
159 Identify the 2 characteristics regarding MAC addresses?
A.) Contains a network portion and host portion
B.) Always assigned by System Administrator
C.) 48 bits long
D.) Contains a vendor code and serial number
Ans C D
MAC addresses are assigned by the vendor. Each MAC address is 48 bits long and made up of 24 bits vendor code and 24 bits serial number.
160 Identify the number range for IPX SAP filters?
A.) 900 - 999
B.) 1000 - 1099
C.) 800 -899
D.) 100 - 199
Ans B
The IPX SAP filtering range is 1000-1099.
CCNA Official Exam Certification Library (Exam 640-802), Third Edition (Containing ICND1 and ICND2 Second Edition Exam Certification Guides)
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