CCNA 1 Module 6

1 
How many bits make up an IPv4 address? 
128 
64 
48 
32 


2 
Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks? 
255.255.255.248 
255.255.255.224 
255.255.255.192 
255.255.255.240 
255.255.255.128 
255.255.255.252 


3 
Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server's properties to allow connectivity to the network? 
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39 
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33 
IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33 
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31 
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1 


4 
Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic. 
/24 
/16 
/20 
/27 
/25 
/28 


5 
Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem? 
The router has an incorrect gateway. 
Host A has an overlapping network address. 
Host A has an incorrect default gateway configured. 
Host A has an incorrect subnet mask. 
NAT is required for the host A network. 


6 
What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts? 
255.255.0.0 
255.255.255.0 
255.255.254.0 
255.255.248.0 


7 
Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address? 
This is a useable host address. 
This is a broadcast address. 
This is a network address. 
This is not a valid address. 


8 
What three facts are true about the network portion of an IPv4 address? (Choose three.) 
identifies an individual device 
is identical for all hosts in a broadcast domain 
is altered as packet is forwarded 
varies in length 
is used to forward packets 
uses flat addressing 


9 
What is the network address of the host 172.25.67.99 /23 in binary? 
10101100. 00011001.01000011.00000000 
10101100. 00011001.01000011.11111111 
10101100. 00011001.01000010.00000000 
10101100. 00011001.01000010.01100011 
10101100. 00010001.01000011. 01100010 
10101100. 00011001.00000000.00000000 


10 
A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? 
172.16.0.0 
172.16.192.0 
172.16.192.128 
172.16.192.160 
172.16.192.168 
172.16.192.176 


11 
Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC? 
The IP settings are not properly configured on the host. 
Internet Protocol is not properly installed on the host. 
There is a problem at the physical or data link layer. 
The default gateway device is not operating. 
A router on the path to the destination host has gone down. 


12 
What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.) 
The router will discard the packet. 
The router will decrement the TTL value and forward the packet to the next router on the path to the destination host. 
The router will send a time exceeded message to the source host. 
The router will increment the TTL value and forward the packet to the next router on the path to the destination host. 
The router will send an ICMP Redirect Message to the source host. 


13 
Refer to the exhibit. An administrator is designing security rules for the 192.168.22.0 /24 network. Each security rule requires an address and mask pair to represent the machines that will be affected by the rule. Which two address and mask pairs will be the most precise way to reference the servers and hosts separately. (Choose two.) 
192.168.22.40 255.255.255.248 
192.168.22.40 255.255.255.252 
192.168.22.100 255.255.255.128 
192.168.22.100 255.255.255.254 
192.168.22.1 255.255.255.192 
192.168.22.101 255.255.255.224 


14 
Which of the following are features of IPv6? (Choose three.) 
larger address space 
faster routing protocols 
data types and classes of service 
authentication and encryption 
improved host naming conventions 
same addressing scheme as IPv4 


15 
Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask? 
binary adding 
hexadecimal anding 
binary division 
binary multiplication 
binary ANDing 


16 
What is the primary reason for development of IPv6? 
security 
header format simplification 
expanded addressing capabilities 
addressing simplification 


17 
Which three IP addresses are private? (Choose three.) 
172.168.33.1 
10.35.66.70 
192.168.99.5 
172.18.88.90 
192.33.55.89 
172.35.16.5 


18 
Which statements are true regarding IP addressing? (Choose two.) 
NAT translates public addresses to private addresses destined for the Internet. 
Only one company is allowed to use a specific private network address space. 
Private addresses are blocked from public Internet by router. 
Network 172.32.0.0 is part of the private address space. 
IP address 127.0.0.1 can be used for a host to direct traffic to itself. 


19 
Which IPv4 subnetted addresses represent valid host addresses? (Choose three.) 
172.16.4.127 /26 
172.16.4.155 /26 
172.16.4.193 /26 
172.16.4.95 /27 
172.16.4.159 /27 
172.16.4.207 /27 


20 
What is a group of hosts called that have identical bit patterns in the high order bits of their addresses? 
an internet 
a network 
an octet 
a radi 


21 
Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem? 
The host subnet mask is incorrect. 
The default gateway is a network address. 
The default gateway is a broadcast address. 
The default gateway is on a different subnet from the host.


22 
Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.) 
LAN workstations 
servers 
network printers 
routers 
remote workstations 
laptops