Download ICND Interconnecting Cisco Networking Devices Part 1.testking.100-105.2019-01-22.1e.250q.vcex

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Exam Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)
Number 100-105
File Name ICND Interconnecting Cisco Networking Devices Part 1.testking.100-105.2019-01-22.1e.250q.vcex
Size 8.66 Mb
Posted January 22, 2019
Downloaded 24



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Demo Questions

Question 1

Refer to the exhibit. The internetwork is using subnets of the address 192.168.1.0 with a subnet mask of 255.255.255.224. The routing protocol in use is RIP version 1. Which address could be assigned to the FastEthernet interface on RouterA? 

  

  • A: 192.168.1.31
  • B: 192.168.1.64
  • C: 192.168.1.127
  • D: 192.168.1.190
  • E: 192.168.1.192

Correct Answer: D

Subnet mask 255.255.255.224 with CIDR of /27 which results in 32 hosts per. 
192.168.1.31 is the broadcast address for sunbet '0' 192.168.1.64 is the network address for subnet '2' 192.168.1.127 is the broadcast address for subnet '3' 192.168.1.192 is the network address for subnet '6' 

  




Question 2

What is the network address for the host with IP address 192.168.23.61/28?

  • A: 192.168.23.0
  • B: 192.168.23.32
  • C: 192.168.23.48
  • D: 192.168.23.56
  • E: 192.168.23.60

Correct Answer: C

convert bit-length prefix to quad-dotted decimal representation, then from it find the number of bits used for subnetting you can find previously calculated number of subnets by separating subnets each having value of last bit used for subnet masking Find that your IP address is in which subnet, that subnet's first address is network address and last address is broadcast address. Based on above steps the answer is option C.




Question 3

What is the best practice when assigning IP addresses in a small office of six hosts?

  • A: Use a DHCP server that is located at the headquarters.
  • B: Use a DHCP server that is located at the branch office.
  • C: Assign the addresses by using the local CDP protocol.
  • D: Assign the addresses statically on each node.

Correct Answer: D

Its best to use static addressing scheme where the number of systems is manageable rather than use dynamic protocol as it is easy to operate and manage.




Question 4

Given a Class C IP address subnetted with a /30 subnet mask, how many valid host IP addresses are available on each of the subnets?

  • A: 1
  • B: 2
  • C: 4
  • D: 8
  • E: 252
  • F: 254

Correct Answer: B

/30 CIDR corresponds to mask 55.255.255.252 whose binary is 11111100 which means 6 subnet bits and 2 host bits which means 62 subnets and 2 hosts per subnet.




Question 5

Which one of the following IP addresses is the last valid host in the subnet using mask 255.255.255.224?

  • A: 192.168.2.63
  • B: 192.168.2.62
  • C: 192.168.2.61
  • D: 192.168.2.60
  • E: 192.168.2.32

Correct Answer: B

With the 224 there are 8 networks with increments of 32 One of these is 32 33 62 63 where 63 is broadcast so 62 is last valid host out of given choices.




Question 6

An administrator is in the process of changing the configuration of a router. What command will allow the administrator to check the changes that have been made prior to saving the new configuration?

  • A: Router# show startup-config
  • B: Router# show current-config
  • C: Router# show running-config
  • D: Router# show memory
  • E: Router# show flash
  • F: Router# show processes

Correct Answer: C

This command followed by the appropriate parameter will show the running config hence the admin will be able to see what changes have been made, and then they can be saved.




Question 7

Which router command will configure an interface with the IP address 10.10.80.1/19?

  • A: router(config-if)# ip address 10.10.80.1/19
  • B: router(config-if)# ip address 10.10.80.1 255.255.0.0
  • C: router(config-if)# ip address 10.10.80.1 255.255.255.0
  • D: router(config-if)# ip address 10.10.80.1 255.255.224.0
  • E: router(config-if)# ip address 10.10.80.1 255.255.240.0
  • F: router(config-if)# ip address 10.10.80.1 255.255.255.240

Correct Answer: D

255.255.224 equal /19 in CIDR format hence the answer




Question 8

Refer to the exhibit.  

  

Which two statements are correct? (Choose two.)

  • A: This is a default route.
  • B: Adding the subnet mask is optional for the ip route command.
  • C: This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA.
  • D: This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address.
  • E: The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.

Correct Answer: AC

This is obviously the default value for the route which is set between the routers and since it is entered in such a manner that it ensures connectivity between the stub network and any host lying beyond RouterA.




Question 9

Refer to the exhibit. Host A can communicate with Host B but not with Hosts C or D. How can the network administrator solve this problem? 

  

  • A: Configure Hosts C and D with IP addresses in the 192.168.2.0 network.
  • B: Install a router and configure a route to route between VLANs 2 and 3.
  • C: Install a second switch and put Hosts C and D on that switch while Hosts A and B remain on the original switch.
  • D: Enable the VLAN trunking protocol on the switch.

Correct Answer: B

Two VLANs require a router in between otherwise they cannot communicate through a simple switch mechanism.




Question 10

What does administrative distance refer to?

  • A: the cost of a link between two neighboring routers
  • B: the advertised cost to reach a network
  • C: the cost to reach a network that is administratively set
  • D: a measure of the trustworthiness of a routing information source

Correct Answer: D

Administrative distance is the first criterion that a router uses to determine which routing protocol to use if two protocols provide route information for the same destination. Administrative distance is a measure of the trustworthiness of the source of the routing information. The smaller the administrative distance value, the more reliable the protocol.










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