The “ipx delay number” command will allow an administrator to change the default settings. What are the default settings?
a) For LAN interfaces, one tick; for WAN interfaces, six ticks
b) For LAN interfaces, six ticks; for WAN interfaces, one tick
c) For LAN interfaces, zero ticks; for WAN interfaces, five ticks
d) For LAN interfaces, five ticks; for WAN interfaces, zero Ticks
answer: A
The default is–for LAN interfaces, one tick; for WAN interfaces, six ticks
What is the maximum hop count for IP RIP?
a) Infinity
b) 16
c) 15
d) 1
answer: C
16 is the maximum hop count, underscoring the size limitation of RIP.
A system administrator, you type “debug ipx sap” and receive the following lines as part of the IOS response: type 0×4, “HELLO2″, 199.0002.0003.0006 (451), 2 hops type 0×4, “HELLO1″, 199.0002.0003.0008 (451), 2 hops What does “0×4″ signify?
a) That is a Get Nearest Server response
b) That it is a General query
c) That it is a General response
d) That it is a Get Nearest Server request
answer: A
Identify the protocol to test connectivity without configuring any layer 3 protocols?
a) TCP
b) Ping
c) IP
d) CDP
e) Telnet
answer: D
CDP can be used to verify connectivity prior to any layer 3 protocols being configured.
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
answer: 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.
Identify the number range for IPX SAP filters?
a) 900 - 999
b) 1000 - 1099
c) 800 -899
d) 100 - 199
answer: B
The IPX SAP filtering range is 1000-1099.
Sequence and acknowledgement numbers are used for?
a) Layer transitioning
b) Flow control
c) Port number addressing
d) Reliability
answer: D
TCP uses sequence numbers and acknowledgements to implement reliability.
Identify 3 IP routing protocols?
a) RIP
b) AURP
c) OSPF
d) IGRP
e) ARP
f) ICMP
answer: A C D
AURP and ICMP are not routing protocols.
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
answer: 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.
Identify the type of routing protocol that maintains a topological database of the network?
a) Topological state
b) Shortest Path First
c) Link state
d) Distance vector
answer: C
Link State routing protocols maintain a database that lists all the networks in the internetwork.
Which OSI layer performs code conversion, code formatting and encryption?
a) Physical
b) Data-Link
c) Application
d) Transport
e) Presentation
f) Network
answer: E
Layer 6 the Presentation layers performs this function.
Identify the hardware component that stores the bootstrap program?
a) ROM
b) NVRAM
c) Booter load
d) RAM
e) Flash
answer: A
ROM contains the boot strap code.
Identify 3 characteristics of a connection oriented protocol?
a) Path determination
b) Flow control
c) Acknowledgements
d) Uses hop count as metric
e) 3 step handshake
answer: B C E
Connection oriented protocols must first establish the connection (3 step handshake), employ methods to acknowledge the receipt of data (acknowledgements) and slow down the flow of data if required (flow control).
