10.4

Question 1

What are two services provided by the OSI network layer? (Choose two.)
 performing error detection
 routing packets toward the destination
 encapsulating PDUs from the transport layer
 placement of frames on the media
 collision detection

Answer 1

 routing packets toward the destination *

 encapsulating PDUs from the transport layer*

Question 2

Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?

 subnet mask
 DNS address
 host IP address
 default gateway address

Answer 2

 default gateway address*

Question 3

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
 to identify the broadcast address of the destination network
 to identify the host address of the destination host
 to identify faulty frames
 to identify the network address of the destination network

Answer 3

 to identify the network address of the destination network*

Question 4

What are two functions of NVRAM? (Choose two.)
 to store the routing table
 to retain contents when power is removed
 to store the startup configuration file
 to contain the running configuration file
 to store the ARP table

Answer 4

 to retain contents when power is removed *

 to store the startup configuration file*

Question 5

Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?
 The administrator will be required to enter Cisco123.
 The administrator will be required to enter Cisco234.
 The administrator will be required to enter Cisco789.
 The administrator will be presented with the R1> prompt.

Answer 5

 The administrator will be presented with the R1> prompt.*

Question 6

What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
	192.0.2.199
	198.51.100.201
	203.0.113.211
	209.165.201.223

Answer 6

 203.0.113.211*

Question 7

What are three characteristics of multicast transmission? (Choose three.)
 The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.
 A single packet can be sent to a group of hosts.
 Multicast transmission can be used by routers to exchange routing information.
 Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.
 Computers use multicast transmission to request IPv4 addresses.
 Multicast messages map lower layer addresses to upper layer addresses.

Answer 7

 A single packet can be sent to a group of hosts. *
 Multicast transmission can be used by routers to exchange routing information. *
 Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.*

Question 8

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
	10.0.0.0/8
	64.100.0.0/14
	127.16.0.0/12
	172.16.0.0/12
	192.31.7.0/24
	192.168.0.0/16

Answer 8

 10.0.0.0/8*
 172.16.0.0/12*
 192.168.0.0/16*

Question 9

What purpose does NAT64 serve in IPv6?
 It converts IPv6 packets into IPv4 packets.
 It translates private IPv6 addresses into public IPv6 addresses.
 It enables companies to use IPv6 unique local addresses in the network.
 It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.
 It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.

Answer 9

 It converts IPv6 packets into IPv4 packets.*

Question 10

What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?
	2001:0:abcd::1
	2001:0:0:abcd::1
	2001::abcd::1
	2001:0000:abcd::1
	2001::abcd:0:1

Answer 10

 2001:0:0:abcd::1*