CtrlAiHub

1.Which one of the following is a Class C IP address ?

1.10.10.14.118
2.135.23.112.57.
3.191.200.199.199.
4.204.67.118.54.

2.You are asked to evolve a TCP/IP addressing scheme for your Organization.How many network numbers (subnet number) must you allow when you design the network for your organization ?

1.One for each subnet, one for each WAN connection.
2.One for each network card.
3.One subnet for each Host.
4.One for each WAN connection only.

3.You have an IP of 156.233.42.56 with a subnet mask of 7 bits. How many hosts and subnets are possible assuming that subnet 0 is not used ?

1.128 subnets and 512 hosts.
2.510 subnets and 126 hosts.
3.126 subnets and 510 hosts
4.512 subnets and 128 hosts

4.Serial 0 is up, line protocol is down. What is the likely problem ?

1.There is a problem exchanging the routing information.
2.There is a problem at physical layer.
3.The link was administratively down.
4.There is a problem with the route both at physical and protocol layers.

5.A client workstation is connected to a DHCP server through a switch and a router, The client machine has been able to access the network resources without any problem. However, after the recent configuration change on the DHCP server, the client workstation is not able to access any network resources. What is the likely solution ?

1.Use ipconfig command with /release and /renew options.
2.Clear arp cache on the router.
3.Reset switch MAC address table.
4.Issue a tracert command to DHCP server.

6.Two sub layers of OSI Data Link layer are which of the following ?

1.Logical Link Control, Media Access Control.
2.Logical Link Control, Data Link Control.
3.Media Access Control, Physical Layer Control.
4.Data Link Control, Physical Layer Control.

7.Which of the following is true of a Switch ?

1.Switches forward packets based on IP address.
2.Switches forward packets based on MAC address.
3.Switches forward packets based on IPX address.
4.Switches forward packets based on Layer3 protocol.

8.A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses ?

1.192.168.1.64/26.
2.192.168.1.56/26.
3.192.168.1.56/27.
4.192.168.1.64/27.

9.Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses ?

1.255.255.255.0.
2.255.255.248.0.
3.255.255.252.0.
4.255.255.254.0.

10.Assuming the default switch configuration, which VLAN range can be added, modified, and removed on a Cisco switch ?

1.2 through 1001.
2.1 through 1001.
3.1 through 1002.
4.2 through 1005.

11.A network administrator creates a layer 3 EtherChannel, bundling four interfaces into channel group 1. On what interface is the IP address configured ?

1.The highest number member interface
2.All member interfaces
3.The port-channel 1 interface
4.The lowest number member interface

12.You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement ?

1.192.168.252.0 255.255.255.252.
2.192.168.252.8 255.255.255.252.
3.192.168.252.16 255.255.255.240.
4.192.168.252.8 255.255.255.248.

13.Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network address ?

1.172.16.16.0.
2.172.16.0.0.
3.172.16.24.0.
4.172.16.28.0.

14.Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication ?

1.application.
2.session.
3.presentation.
4.network.

15.Host A pings interface S0/0 on router 3. What is the TTL value for that ping ?

1.253.
2.252.
3.254.
4.255.