Free Cisco CCNA Practice Exam     

Created by Jay Banks
 
1. On a sending node, what happens to data on the Network layer, layer 3, as it moves down from the Transport layer?
Segments are broken into packets and Network layer headers are added
Segments are formatted into frames and layer 2 headers are added
Data are formatted into segments and Layer 3 headers are added
Layer 4 headers are removed and data is encapsulated into Protocol Data Units (PDU) .

Answer:

2. Of the following protocols, which is not an interior routing protocol?
OSPF
IGRP
RIP
EIGRP
BGP

Answer:

3. From the seven layers that make up the OSI model, which layer performs error recovery and reliability?
Data Link
Network
Transport
Session
Presentation
Application

Answer:

4. The Data Link layer performs a number of separate activities. Which of the following is not one of them?
Physical addressing
Network topology
Error recovery
Access to the physical medium (arbitration)
Flow control

Answer:

5. Protocols that carry end-user traffic across the inter-network are Routed protocols. Choose an example of routed protocols from the choices listed.
IP and IPX
RIP, IGRP
OSPF, EIGRP
All of the above

Answer:

6. In an Ethernet network, _________ is the method used to control access to the physical media by network nodes.
CSMA/CD
HOSTS/LMHOSTS access
Advanced ARP
TCP/IP

Answer:

7. NLSP and OSPF are examples of which type of protocol?
Distance Vector
Link State
Hybrid
None of the above

Answer:

8. The core protocol to many TCP/IP utilities, such as traceroute and PING, is?
ER/ER (Echo Request/Echo Reply)
ICMP
IS-IS
SNMP

Answer:

9. What protocol reduces administration in a switched network, by allowing you to configure a new VLAN on one server and automatically have the same VLAN configured throughout all switches in the domain? 
ISL
LMI
IPX
VTP

Answer:

10. Of the following choices, which are valid LMI types?
Cisco
ANSI
Q933A
All of the above

Answer:

11. For Frame Relay, Cisco routers support Cisco and IETF frame types.
True
False

Answer:

12. Before a VLAN can be created between two switches, what must be configured on the ports that are going to be used to connect the switches together?
ATM enabled.
Source route must be correctly configured.
A trunking protocol must be enabled.
Virtual Segmentation protocol (VSP) must be enabled.

Answer:

13. Of the following, which is a valid benefit of segmenting a LAN with a switch?
Half-duplex networking 
Shared bandwidth between users
Increased broadcast domains
More collision domains are created

Answer:

14. To find the path to "host1.quest4.org," which of the following command syntaxes would give you the correct result?
extend-ping host1.quest4.org
ping host1.quest4.org
route map host1.quest4.org
trace host1.quest4.org

Answer:

15. What type of packets do routers exchange in an EIGRP network to acknowledge each other as neighbors?
Acks
Hello
Intro
Hola

Answer:

16. What protocol is designed to facilitate the remote management and monitoring of IP based devices, including printers, servers, hubs, switches, and Cisco routers?
ICMP
SNMP
RTTMON
RTT

Answer:

17. In a network containing only one subnet, a default gateway does not have to be configured in order to transmit frames/packets from one node to another node.
True
False

Answer:

18. In a RIP network, a hop count of 16 indicates what?
Hop 17 is next, if needed.
Route will have a hop count of infinity
Hop count of 16 is an impossibility
Maximum hop count in a RIP network is 10

Answer:

19. Which command will change a Cisco router, configured for PPP encapsulation, back to the router's default encapsulation?
No encapsulation PPP
Encapsulation CHAP
Encapsulation cisco
Encapsulation default

Answer:

20. That it is never useful to send information about a route back from the direction from which it came, unless it is better information, is the premise behind what technique? 
Split Horizon
Time To Live (TTL) metric
IGRP routing
Link-state routing

Answer:

21. What value would be derived if the binary value of 10001001 is converted to its decimal form?
128
192
173
137

Answer:

22. Inverse ARP will map a ___________ to a ____________.
Network address, physical address
Physical address, network address
Logical address, known IP address
DLCI, IP address

Answer:

23. While trying to establish a console session with your router, your attempts alternate between either failing or logging on and receiving only garbage characters. Of the following, what would be the most likely cause of this problem?
Incorrect login password
Incorrect LMI frame rate
Improperly configured SNMP network management configuration 
Speed mismatch between the router and the terminal emulation software

Answer:

24. An Ethernet MAC address is _______ bits in length?
80
64
48
32

Answer:

25. Of the following commands, which is the command syntax to add a default IP route to the routing table, which points to the IP address of 65.205.1.1?
ip address default 65.205.1.1 0.0.0.0
ip route 0.0.0.0 0.0.0.0 65.205.1.1
ip route default 65.205.1.1
ipx destination-net 65.205.1.1

Answer:

26. While viewing a routing table, you notice the following entry: 10.0.0.0/8 [120/1] via 172.16.1.200, 00:00:16, Ethernet0. The number 120 in the entry represents what?
The route has a composite metric of 120 tics
The route was determined after 120 hops
The route takes 120 milliseconds 
The route has an administrative distance of 120

Answer:

27. Standard IP access lists use what to determine whether to accept or deny packets?
Source address
Destination address
Specific Port number
Protocol

Answer:

28. The LLC sub-layer uses ________________ to identify the upper layer protocol stack.
SAP
SNAP
SLAP
ARP

Answer:

29. What ISDN reference point represents NT1 and NT2 devices?
R
S
T
U

Answer:

30. Of the following basic ISDN protocols, which choice in not valid?
E protocols
D protocols
I protocols
Q protocols

Answer:

31. When the show interface command is issued, the result includes the message, "Serial0 is administratively down, line protocol is up." Of the following, which choice represents the most likely cause of this message?
Physical problem with cable connected to Serial0
The serial clock transmit external is not set on the DSU/CSU
The remote router is not sending keepalive packets
Serial0 has been disabled with the shutdown interface configuration command

Answer:

32. From the application level down, which of the following represents the five steps of data encapsulation?
PDUs, segments, frames, packets, bits 
Data, packets, frames, segments, bits
Data, segments, packets, frames, bits
PDUs, packets, frames, segments, bits

Answer:

 

 


 


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