101 What IP command would you use to test the entire IP stack?
A.) Stack-test
B.) Arp
C.) Telnet
D.) Ping
E.) Trace
Ans C
Because Telnet is an application and it resides at the top of the stack it traverses down the stack
and up the stack at the receiving end.
102 Identify the 2 hardware components used to manage and/or configure a router?
A.) Auxiliary port
B.) ROM port C.) Management port
D.) Console port
Ans A D
The 2 hardware ports used to configure the router are the console and auxiliary ports.
103 What is the default bandwidth of a serial connection?
A.) 1200 baud
B.) 1.544 Mbps (T1)
C.) 10 Mbps
D.) 96Kpbs
Ans B
The default bandwidth is T1.
104 Identify 2 functions of IPX access-lists?
A.) Control SAP traffic
B.) Limit number of Novell servers on a network
C.) Limit number of workstations on a network
D.) Block IPX traffic
Ans A D
IPX access lists are used to restrict IPX traffic and SAP broadcasts.
105 Identify 2 HDLC characteristics?
A.) Default serial encapsulation
B.) Open standard
C.) Supports Stacker compression
D.) Supports point-to-point and multipoint
Ans A D
HDLC is the default serial encapsulation and supports point-to-point and multipoint. It is not an
open standard and does not support compression.
106 Identify 3 IP applications?
A.) AURP
B.) ARP
C.) Telnet
D.) SMTP
E.) DNS
F.) RARP
Ans C D E
ARP and AURP are not part the application layer of the TCP/IP stack. SMTP - Simple Mail
Transfer Protocol, Telnet, DNS - Domain Name Services (name to IP resolution).
107 Identify 3 LAN technologies?
A.) FDDI
B.) HDLC
C.) HSSI D.) X.25
E.) 802.3
F.) 802.5
Ans A E F
The question is asking for 3 LAN technologies, HDLC, HSSI and X.25 are all WAN technologies.
108 Identify the 4 that are not LAN technologies?
A.) HDLC
B.) FDDI
C.) 802.5
D.) HSSI
E.) SDLC
F.) Frame Relay
Ans A D E F
802.5 and FDDI are LAN technologies
109 Which OSI layer supports the communication component of an application?
A.) Data-Link
B.) Physical
C.) Session
D.) Presentation
E.) Application
F.) Transport
Ans E
Layer 7 the Application layer performs this function.
110 Identify the length of an IPX address and it's components?
A.) 80 bits, 48 bits network and 32 bits node
B.) 32 bits, 16 bits network and 16 bits node
C.) None of the above
D.) 80 bits, 32 bits network and 48 bits node
Ans D
IPX address has 2 components; network and node. The network address is 32 bits and the node
is 48 bits, total of 80 bits.
Layer 4 the Transport layer performs this function.
111 Identify the administrative distance and appropriate routing protocol?
A.) RIP = 255, IGRP = 100
B.) RIP = 100, IGRP = 120 C.) RIP = 1, IGRP = 0
D.) RIP = 120, IGRP = 100
Ans D
The administrative distance for RIP is 120 and IGRP is 100. The lower the AD the better the
routing information.
112 Which OSI layer incorporates the MAC address and the LLC?
A.) Data link
B.) Network
C.) Physcial
D.) Transport
Ans): A
Layer 2 the Data-Link layer incorporates the MAC and LLC sublayers
113 If configuring a Cisco router to connect to a non-Cisco router across a Frame Relay
network, which encapsulation type would you select?
A.) Q933a
B.) ISDN
C.) IETF
D.) CISCO
E.) ANSI
Ans C
There are two types of Frame Relay encapsulations; Cisco and IETF. IETF is required when
connecting a Cisco to a non-Cisco router.
114 Identify the 2 items that TCP and UDP share in common?
A.) Both use port numbers to identify upper level applications
B.) Operate at the Network layer
C.) Both are Transport protocols
D.) Both are reliable communications
Ans A C
TCP and UPD are both layer 4 Transport protocols and both use port number to identify upper
level applications.
115 Identify 3 characteristics of IP RIP?
A.) Distance vector
B.) Administrative distance is 120
C.) Periodic updates every 60 seconds
D.) Uses a composite metric
E.) Can load balance
Ans A B E
IP RIP is a distance vector protocol, it can load balance up to 4 equal cost paths and it's rating of
trustworthiness is 120.
116 Which of the following is a layer 2 device?
A.) Switch B.) Router
C.) Repeater
D.) Hub
Ans A
A Hub and Repeater are layer 1 devices. A Router is a layer 3 device.
117 Identify the definition of demarcation?
A.) Date in which the WAN service contract expires
B.) Cabling which extends from the WAN service provider to the customer
C.) Division of responsibility, where the CPE ends and the local loop begins
D.) Equipment which is located at the customer premises
Ans C
Demarcation is the point in which responsibility changes hands.
118 Identify the 3 key features of the Cisco Discovery Protocol?
A.) Off by default
B.) Will allow for the discovery of layer 3 addresses on neighbor routers
C.) Verify connectivity
D.) Open standard
E.) Does not require any layer 3 protocols to be configured
Ans B C E
CDP is used for 2 basic reasons; neighbor connectivity and layer 3 discovery if configured. It is
proprietary and is on by default.
119 Identify the 3 characteristics of IPX RIP?
A.) Distance vector
B.) Does not support multiple paths
C.) 60 second updates
D.) Default encapsulation is SAP
E.) Uses ticks and hop count as a metric
Ans A C E
IPX RIP is a distance vector routing protocol, it does support multiple paths, the default
encapsulation is 'novell-ether', it uses tick count as a primary metric and hop count as a tie
breaker and it sends it’s updates every 60 seconds.
120 Identify the access-list range for an extended IP access-list?
A.) 800 - 899
B.) 1 - 99
C.) 1000 - 1099
D.) 100 - 199
Ans D
IP extended access-lists use the number range of 100-199.CCNA Interview Questions Page 13
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.
CCNA Interview Questions Page 14
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
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.
CDP can be used to verify connectivity prior to any layer 3 protocols being configured.
CCNA
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