161 What is the purpose of ARP?
A.) IP to host name resolution
B.) Host name to IP address resolution
C.) Mac to IP address resolution
D.) IP to Mac address resolution
Ans D
Address Resolution Protocol resolves the MAC address if the IP address is known. It is a layer 3 protocol.
162 Which OSI layer establishes, maintains and terminates sessions between hosts?
A.) Application
B.) Physical
C.) Data-Link
D.) Presentation
E.) Network
F.) Session
Ans F
Layer 5 the Session layer performs this function.
163 Which statement is true regarding Administrative distance?
A.) It is a metric
B.) Number of hops between two routers
C.) Trustworthiness of the routing information
D.) RIP Administrative distance is 100
Ans C
Administrative distance is rating of trustworthiness of the routing information. The lower the AD the better the information.
164 Identify the purpose of the Ping command?
A.) Share routing information with a neighbor router
B.) Transmit user data when buffers are full
C.) Test connectivity at layer 3
D.) Test entire protocol stack
Ans C
The ping command tests layer 3 connectivity.
165 Identify the order of the 5 step encapsulation?
1. Create the segment
2. Convert the frame to bits
3. Create the packet
4. Create the frame
5. User creates the data
A.) 1,2,4,2,5
B.) 2,1,3,4,5
C.) 5,1,3,4,2
D.) 5,3,4,1,2
Ans C
Cisco 5 step encapsulation.
1) User creates Data
2) Data is converted into a segment at layer 4
3) The segment is converted to packet at layer 3
4) The packet it converted into a frame at layer 2
5) The frame is converted into bits at layer 1
166 The Cisco IOS is stored where?
A.) ROM
B.) CD
C.) Flash
D.) NVRAM
Ans C
By default the Cisco IOS is stored in flash.
167 Sequence and acknowledgement numbers are used for?
A.) Layer transitioning
B.) Flow control
C.) Port number addressing
D.) Reliability
Ans D
TCP uses sequence numbers and acknowledgements to implement reliability.
168 Identify IPX GNS and it's purpose?
A.) Go Network Server - sends a print job to a network server
B.) Get Nearest Server - locate the nearest server
C.) Guaranteed Network Services - allocates resources to users
D.) Get Notes Server - locates Domino Server
Ans B
GNS stands for Get Nearest Server, initiated by a workstation.
169 Identify the true statement regarding subnetting?
A.) Allows for more host address
B.) Borrow bits from the network portion of the address
C.) Allows for unlimited number of networks
D.) Borrow bits from the host portion of the address
Ans D
Subnetting involves borrowing bits for the host portion of the address to be used to subnet addressing.
170 Inverse ARP serves what purpose?
A.) Method for a local router to introduce itself to the remote end of the connection
B.) Broadcast a routing table update
C.) Identify MAC addresses if the IP address is known
D.) Sent every 10 seconds used to verify the Frame Switch is still active
Ans A
Inverse ARP operates in a Frame Relay network so the two end points can identify themselves to each other.
171 Identify 3 characteristics of a MAC address?
A.) Burned into the NIC
B.) 48 bits long
C.) Length is 32 bits
D.) Used to deliver the frame to the end device
E.) Contains a network portion and a host portion
Ans A B D
The MAC address is 48 bits long not 32. It does NOT contain a network and host portion with the address. It is used to deliver the frame to the destination device.
172 Identify 3 IP routing protocols?
A.) RIP
B.) AURP
C.) OSPF
D.) IGRP
E.) ARP
F.) ICMP
Ans A C D
AURP and ICMP are not routing protocols.
173 Identify the type of routing protocol that exchanges entire routing tables at regular intervals?
A.) Link state
B.) Interior gateway protocols
C.) Appletalk routing
D.) Distance vector
Ans D
Distance Vector routing protocols exchange entire routing tables with it's neighbors. Link State routing protocols exchange LSP's to share information regarding the networks they know.
174 Identify the type of hardware required to connect a Token ring network to an Ethernet network?
A.) Repeater
B.) TR-Enet
C.) Router
D.) Token Ring to Ethernet translation hub
Ans C
Routers are used to connect dissimilar networks with different access-methods, like connecting Token Ring to Ethernet.
175 Identify 3 characteristics regarding CDP?
A.) On by default
B.) Shows only directly connected neighbors
C.) Requires IP or IPX
D.) 60 second update interval by default
E.) 30 second updates interval by default
Ans A B D
CDP stands for Cisco Discovery Protocol. It is used to discover directly connected neighbors, it is on by default and has a 60 second update interval by default.
176 Identify 2 transport layer protocols?
A.) IP
B.) TCP
C.) CDP
D.) ARP
E.) UDP
Ans B E
TPC and UDP are 2 layer4 Transport protocols.
177 Identify 2 features of X.25?
A.) Supports only IP
B.) Utilizes switched and permanent virtual circuits
C.) Contains minimal flow control and error recovery
D.) Utilizes LAPB as it's data-link protocol
Ans B D
X.25 utilizes LAPB and uses switched and permanent VC's. It supports multiple layer protocols and is heavy laden with error detection and correction mechanisms.
180 Identify the purpose of the Trace command?
A.) Explorer packet transmitting routing information
B.) Test connectivity
C.) Determine the path a packet is taking through the network
D.) Transmits user data when buffers are full
Ans C
The trace command is used to determine the path a packet has taken through the network.
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