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CCENT (640-822 ICND1) Sample Quiz 1
This is a sample quiz to challenge you regarding the multiple choice questions you will face in the actual exam. This quiz features a sample multiple choice from each major section of the exam blueprint.
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Cisco Discovery Protocol (CDP) operates at what layer of the OSI Model?
The physical layer defines electrical and physical specifications for devices.
CDP does indeed function at the Data Link Layer of the OSI model.
The network layer provides the functional and procedural means of transferring variable length data sequences from a source host on one network to a destination host on a different network (in contrast to the data link layer which connects hosts within the same network), while maintaining the quality of service requested by the transport layer.
The transport layer provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers. The transport layer controls the reliability of a given link through flow control, segmentation/desegmentation, and error control. Some protocols are state- and connection-oriented.
Question 1 Explanation:
The Cisco Discovery Protocol (CDP) is a proprietary Data Link Layer protocol developed by Cisco Systems. It is used to share information about other directly connected Cisco equipment, such as the operating system version and IP address. CDP can also be used for On-Demand Routing, which is a method of including routing information in CDP announcements so that dynamic routing protocols do not need to be used in simple networks.
A Cisco switch has 8 PCs connected and the switch is in its default configuration. The switch also connects to a Cisco router. How many collision domains are there?
There is indeed a collision domain per host, but there is also a collision domain for the router connection.
There is 1 broadcast domain, true, but there are more collision domains.
Question 2 Explanation:
The switch engages in something we call microsegmentation. This is the creation of a collision domain for every connection. This eliminates collisions from the network.
What is the last usable host address on the third subnet for the following address and mask combination - 192.168.1.0 255.255.255.248?
This is the network address for the forth subnet.
This is the broadcast address for the third subnet.
This is the first usable address on the third subnet.
Question 3 Explanation:
Using the shortcut method, we first determine how many bits of subnetting are used. 248 tells us it is 5 bits - 128+64+32+16+8. We then count in 5 bits deep in the conversion chart to learn the subnets increment on 8. So the subnets are 0-7, 8-15, 16-23
What command prevents the vty lines from accepting Telnet and only permits SSH?
This command eliminates a password check.
This command prompts for password check.
transport input ssh
transport input no telnet
Question 4 Explanation:
The transport input ssh command allows you to specify SSH as the only permitted protocol inbound on the VTY lines.
What is the term for a WiFi network that you setup that has no access point? Choose two.
This features a single access point.
This features multiple access points.
Question 5 Explanation:
The Ad Hoc or the Independent Basic Service Set has no access point.
Your firewall is blocking UDP port 69, which service will not work?
HTTP uses TCP port 80.
SNMP uses UDP ports 161 and 162 in its operation.
SMTP uses TCP port 25 in its operation.
FTP uses TCP port 21.
Question 6 Explanation:
TFTP uses UDP port 69 in its operation.
What command would be used on a DCE interface on a Cisco router?
The bandwidth command should be used on all WAN interfaces.
There is no such command as speed.
There is no such command as rate.
Question 7 Explanation:
The clock rate command is required on the DCE side of a back to back serial connection Cisco router configuration.
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