2015-08-21
395
Data-link connection identifier
Data-link circuit identifier
Data-link connection indicator
Data-link circuit indicator
Which of the following are valid Class C IP addresses that can be assigned to hosts?
1.1.1.1
200.1.1.1
128.128.128.128
224.1.1.1
What is the range of values for the first octet Class A IP networks?
0 to 127
0 to 126
1 to 127
128 to 191
PC1 and PC2 are on two different Ethernets that are separated by an IP router. PC1’s IP address is 10.1.1.1 and no subnetting is used. Which of the following addresses could be used for PC2?
10.1.1.2
10.2.2.2
9.1.1.1
255.1.1.1
Each class B network contains how many IP addresses that can be assigned to hosts?
166,777,214
65,536
65,534
32,768
Each class C network contains how many IP addresses that can be assigned to hosts?
65,534
32,766
In the URL http://www.certskills.com/name.html which part identifies the web server?
http
www.certskills.com
certskills.com
http://www.certskills.com
Which of the following is a useful command on some Microsoft OSs for discovering a host’s current IP address and mask?
tracert
ipconfing/all
arp -a
ipconfing/displaydns
Why does the formula for the number of hosts per submit (2H-2) require the subtraction of 2 hosts?
To reserve to addresses for redundant default gateways (routers)
To reserve the two addresses required for DHCP operation
To reserve addresses for the subnet ID and default gateways (routers)
To reserve addresses for the subnet broadcast address and subnet ID
Which of the following are private IP addresses?
172.31.0.0
172.32.0.0
192.1.168.0
11.0.0.0
Which of the following are public IP addresses?
9.0.0.0
|
|
|
192.168.255.0
10.10.0.0
172.30.0.0
Which of the following are not valid Class A network IDs?
1.0.0.0
130.0.0.0
117.0.0.0
138.0.0.0
Which of the following are not valid Class B network IDs?
130.0.0.0
195.255.0.0
128.0.0.0
150.255.0.0
Which of the following prompts indicate that the router is currently in privileged mode?
Router(config)#
Router>
Router#
Router(config-if)
Which OSI layer provides network services to applications?
Application
Data Link
Session
Network
Which of the following is a correct combination of file type and default location in a Cisco router?
IOS/NVRAM
Startup configuration/flash memory
IOS/flash memory
Running configuration/NVRAM
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?
172.16.0.5
172.16.1.100
172.16.1.198
172.16.3.0
Using the example from the previous question, what would be the IP address if you were using the first subnet? The network ID is 192.168.10.0/28, and you need to use the last available IP address in the range. Again, the zero subnet should not be considered valid for this question.
192.168.10.24
192.168.10.62
192.168.10.30
192.168.10.127
What is the subnetwork number of a host with an IP address of 172.16.66.0/21?
172.16.36.0
172.16.48.0
172.16.64.0
172.16.0.0
You have an interface on router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?
You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?
