121 Identify the X.25 addressing standard?

A.) X.121

B.) X.25a

C.) ITU-1

D.) Q933a

Ans A

The X.25 layer 3 addressing standards is X.121.

122 Identify 3 features of IGRP?

A.) Composite metric

B.) New horizon

C.) Flash updates

D.) 60 periodic updates

E.) Poison reverse

Ans A C E

IGRP uses a composite metric made up of bandwidth and delay by default, it updates every 60 seconds and will trigger an update if the topology changes.

123 Where is the backup configuration file stored?

A.) RAM

B.) ROM

C.) Console

D.) NVRAM

Ans D

One location to store the backup configuration is NVRAM.

124 Identify the correct pair of Novell Ethernet encapsulation and Cisco terminology?

A.) Ethernet II, Snap

B.) Ethernet 802.3, Novell-Ether

C.) Ethernet SNAP, Arpa

D.) Ethernet 802.2, Snap

Ans B

The default IPX LAN encapsulation is Novell-Ether which is 802.3

125 Identify 3 characteristics regarding IP access-lists?

A.) Can be configured as a standard access-list

B.) Can be run from another router running IP

C.) Can be configured as a named access-list

D.) Are the same as IPX access-lists

E.) Can be configured as an extended access-list

Ans A C E

There are 3 types of IP access-lists; standard, extended and named. Named access-lists can be either standard or extended depending on how they are configured.

126 Identify 3 ways in which a router can be configured?

A.) TFTP

B.) Nvram

C.) Ping

D.) Console

E.) Trace

Ans A B D

Changes to the configuration can be entered via the console, a config stored in NVRAM or on a TFTP server. Trace and ping are tools to verify connectivity.

127 A traffic light is an example of what type of mechanism?

A.) Collision detection

B.) Flow control

C.) Sequence numbering

D.) Network management

Ans B

A Traffic light is an example of flow control.

128 Windowing is a type of?

A.) Negative acknowledgement

B.) Address resolution

C.) Layer transition mechanism

D.) Flow control

Ans D

Windowing allow the sender and receiver to dictate how much information that can be received prior to an acknowledgement. It is a form of flow control.

129 Identify the 2 types of access-list filters that control SAP traffic?

A.) Novell-ether

B.) Arpa

C.) Input-sap-filter

D.) Round-robin

E.) Output-sap-filter

Ans C E

SAP's can be blocked by 2 methods; inbound and outbound.

130 Identify the 3 guidelines for routers in the same autonomous system?

A.) Must be configured for IGRP or RIP

B.) Interconnected

C.) Assigned the same autonomous system number

D.) Configured for the same routing protocol

E.) Must be same model of router

Ans B C D

Autonomous system must be interconnected, assigned the same AS # and configured with the same routing protocol.

 131 Identify the hardware component used to store buffers, tables, running-configuration etc?

A.) NVRAM

B.) ROM

C.) RAM

D.) Flash

Ans C

RAM is the dynamic memory area. ROM contains the boot strap code, NVRAM contains the startup-config and Flash contains the IOS.

132 Identify 3 UDP characteristics?

A.) Reliable communication protocol

B.) Applications that use UDP must incorporate reliability

C.) Connection-less oriented

D.) Incorporates no handshaking

Ans B C D

UPD is a layer 4 Transport protocol. It is connection-less because it does establish a connection therefore the 3 step handshake is not needed, it does NOT implement any flow control or acknowledgments. Any application that uses UDP must incorporate any needed reliability.

133 Identify the IPX standard access-list number range?

A.) 600 - 699

B.) 1000 - 1099

C.) 1 - 99

D.) 100 - 199

E.) 800 - 899

Ans E

IPX standard access-list range is 800-899.

134 Which OSI layer provides best effort end to end packet delivery?

A.) Data-Link

B.) Presentation

C.) Network

D.) Transport

E.) Physical

F.) Application

Ans C

Layer 3 the Network layer performs this function.

135 Identify the 2 methods to modify the routers boot sequence?

A.) Setup program

B.) Boot system commands

C.) RXBoot

D.) Config-register

Ans B D

'Boot system' command the 'config-register' are used to manipulate the boot sequence.

136 Identify the 3 pieces of hardware you would not install to prevent broadcasts?

A.) Switch

B.) Repeater

C.) Bridge

D.) Router

Ans A B C

Router are implemented not only to break up networks into smaller segments but they are used to block broadcasts.

137 Identify 2 features of PPP PAP authentication?

A.) Username and password is sent in clear text

B.) Authentication messages are sent periodically during the connection

C.) More secure than CHAP

D.) Remote node is control of authentication process

Ans A D

PPP PAP authentication sends the username and passwords in clear text and the remote node initiates the authentication process.

138 Identify the switching method that examines the destination MAC address as the frame is being received then begins forwarding the frame prior to receiving the entire frame?

A.) Fragment-free

B.) Store and Forward

C.) Cut-through

D.) Fast forward

Ans C

Cut through examines the destination MAC address and begins forwarding the frame prior to receiving the entire frame.

139 Identify 1 characteristic of RARP?

A.) IP to MAC address translation

B.) Connectionless delivery of packets

C.) Can be used to initiate remote O/S load sequence

D.) Generates error and control messages

Ans C

Reverse Address Resolution Protocol is used to obtain a layer 3 address if the MAC address is known which then facilitates the loading of the O/S.

140 Identify the protocol to test connectivity without configuring any layer 3 protocols?

A.) TCP

B.) Ping

C.) IP

D.) CDP

E.) Telnet

Ans D

CDP can be used to verify connectivity prior to any layer 3 protocols being configured.

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.