Online Networking Test - Networking Test - Random

Instruction:

  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20


Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.

1.
Which of the following is the valid host range for the subnet on which the IP address 192.168.168.188 255.255.255.192 resides?
192.168.168.129-190
192.168.168.129-191
192.168.168.128-190
192.168.168.128-192
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
256 - 192 = 64. 64 + 64 = 128. 128 + 64 = 192. The subnet is 128, the broadcast address is 191, and the valid host range is the numbers in between, or 129-190.

2.
What PPP protocol provides dynamic addressing, authentication, and multilink?
NCP
HDLC
LCP
X.25
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
Link Control Protocol in the PPP stack provides dynamic addressing, authentication, and multilink.

3.
To back up an IOS, what command will you use?
backup IOS disk
copy ios tftp
copy tftp flash
copy flash tftp
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The command copy flash tftp will prompt you to back up an existing IOS in flash to a TFTP host.

4.
What protocol is used to find the hardware address of a local device?
RARP
ARP
IP
ICMP
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
Address Resolution Protocol (ARP) is used to find the hardware address from a known IP address.

5.
Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.
192.168.10.142
192.168.10.66
192.168.100.254
192.168.10.143
192.168.10.126
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
A /28 is a 255.255.255.240 mask. Let's count to the ninth subnet (we need to find the broadcast address of the eighth subnet, so we need to count to the ninth subnet). Starting at 16 (remember, the question stated that we will not use subnet zero, so we start at 16, not 0), 16, 32, 48, 64, 80, 96, 112, 128, 144. The eighth subnet is 128 and the next subnet is 144, so our broadcast address of the 128 subnet is 143. This makes the host range 129-142. 142 is the last valid host.

6.
You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN?
192.168.192.15
192.168.192.31
192.168.192.63
192.168.192.127
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
A /29 (255.255.255.248) has a block size of 8 in the fourth octet. This means the subnets are 0, 8, 16, 24, etc. 10 is in the 8 subnet. The next subnet is 16, so 15 is the broadcast address.

7.
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
  1. show version
  2. show protocols
  3. show interfaces
  4. show controllers
  5. show ip interface
1, 2 and 4
2, 3 and 5
3 and 4 only
None of the above
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The commands show protocols, show interfaces, and show ip interface will show you the layer 1 and 2 status and the IP addresses of your router's interfaces.

8.
If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?
Tab+Spacebar
Ctrl+X, then 6
Ctrl+Shift+X, then 6
Ctrl+Shift+6, then X
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
To keep open one or more Telnet sessions, use the Ctrl+Shift+6 and then X keystroke combination.

9.
Which command will show you the IOS version running on your router?
sh IOS
sh flash
sh version
sh running-config
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The best answer is show version, which shows you the IOS file running currently on your router. The show flash command shows you the contents of flash memory, not which file is running.

10.
What does the command o/r 0x2142 provide?
It is used to restart the router.
It is used to bypass the configuration in NVRAM.
It is used to enter ROM Monitor mode.
It is used to view the lost password.
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The default configuration setting is 0x2102, which tells the router to load the IOS from flash and the configuration from NVRAM. 0x2142 tells the router to bypass the configuration in NVRAM so that you can perform password recovery.

11.
Which is true regarding EIGRP successor routes?
  1. A successor route is used by EIGRP to forward traffic to a destination.
  2. Successor routes are saved in the topology table to be used if the primary route fails.
  3. Successor routes are flagged as "active" in the routing table.
  4. A successor route may be backed up by a feasible successor route.
  5. Successor routes are stored in the neighbor table following the discovery process.
1 and 3
2 and 3
1 and 4
3, 4 and 5
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
Successor routes are the routes picked from the topology table as the best route to a remote network, so these are the routes that IP uses in the routing table to forward traffic to a remote destination. The topology table contains any route that is not as good as the successor route and is considered a feasible successor, or backup route. Remember that all routes are in the topology table, even successor routes.

12.
What are reasons for creating OSPF in a hierarchical design?
  1. To decrease routing overhead
  2. To speed up convergence
  3. To confine network instability to single areas of the network
  4. To make configuring OSPF easier
1, 2 and 3
3 only
3 and 4
2, 3 nd 4
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
OSPF is created in a hierarchical design, not a flat design like RIP. This decreases routing overhead, speeds up convergence, and confines network instability to a single area of the network.

13.
A network administrator needs to configure a router with a distance-vector protocol that allows classless routing. Which of the following satisfies those requirements?
IGRP
OSPF
RIPv1
EIGRP
IS-IS
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
In this question, we're calling EIGRP just plain old distance vector. EIGRP is an "advanced" distance-vector routing protocol, sometimes called a hybrid routing protocol because it uses the characteristics of both distance-vector and link-state routing protocols.

14.
What is the purpose of Spanning Tree Protocol in a switched LAN?
To provide a mechanism for network monitoring in switched environments
To prevent routing loops in networks with redundant paths
To prevent switching loops in networks with redundant switched paths
To manage the VLAN database across multiple switches
To create collision domains
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The Spanning Tree Protocol (STP) was designed to stop layer 2 loops. All Cisco switches have the STP on by default.

15.
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?
(config)# ip access-group 110 in
(config-if)# ip access-group 110 in
(config-if)# ip access-group Blocksales in
(config-if)# blocksales ip access-list in
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
Using a named access list just replaces the number used when applying the list to the router's interface. ip access-group Blocksales in is correct.

16.
Which command would you use to apply an access list to a router interface?
ip access-list 101 out
access-list ip 101 in
ip access-group 101 in
access-group ip 101 in
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
To apply an access list, the proper command is ip access-group 101 in.

17.
Which command will show you all the translations active on your router?
show ip nat translations
show ip nat statistics
debug ip nat
clear ip nat translations *
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The command show ip nat translations will show you the translation table containing all the active NAT entries.

18.
Which command will clear all the translations active on your router?
show ip nat translations
show ip nat statistics
debug ip nat
clear ip nat translations *
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The command clear ip nat translations * will clear all the active NAT entries in your translation table.

19.
What is the maximum data rate for the 802.11g standard?
6Mbps
11Mbps
22Mbps
54Mbps
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The IEEE 802.11g standard provides a maximum data rate of up to 54Mbps.

20.
Cisco's Unified Wireless Solution provides a mesh solution. What devices do you absolutely need to purchase to run a Cisco solution?
  1. WCS
  2. Controller
  3. Access point
  4. Bridge
1 and 2
2 and 3
1 and 4 only
4 only
Your Answer: Option
(Not Answered)
Correct Answer: Option
Explanation:
The Cisco Unified Wireless Solution is a great product, but you must purchase specialized devices. Cisco managed access points and a controller are the devices you need to purchase to run the Unified Wireless Solution.

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