CCNA LAB4

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Question No : 1
An administrator is working with the 192.168.4.0 network, which has been subnetted with a
/26 mask. Which two addresses can be assigned to hosts within the same subnet?
(Choose two.)
  • A. 192.168.4.61
  • B. 192.168.4.63
  • C. 192.168.4.67
  • D. 192.168.4.125
  • E. 192.168.4.128
  • F. 192.168.4.132
Answer : C,D


Question No : 2 
Which command will assign the last usable IP address from the 192.168.32.128/28
subnetwork to a router interface?
  • A. Router(config-if)# ip address 192.168.32.142 255.255.255.240
  • B. Router(config-if)# ip address 192.168.32.143 255.255.255.240
  • C. Router(config-if)# ip address 192.168.32.158 255.255.255.240
  • D. Router(config-if)# ip address 192.168.32.142 255.255.255.248
  • E. Router(config-if)# ip address 192.168.32.144 255.255.255.224
  • F. Router(config-if)# ip address 192.168.32.158 255.255.255.224
Answer : A


Question No : 3 
Refer to the topology and MAC address table shown in the exhibit.

Host A sends a data frame to host D. What will the switch do when it receives the frame
from host A?
  • A. The switch will add the source address and port to the MAC address table and forward the frame to host D.
  • B. The switch will discard the frame and send an error message back to host A.
  • C. The switch will flood the frame out of all ports except for port Fa0/3.
  • D. The switch will add the destination address of the frame to the MAC address table and forward the frame to host D.
Answer : A


Question No : 4
Which two statements are true concerning wireless standards? (Choose two.)
  • A. Three standards exist: 802.11a/b, 802.11g, and 802.11w.
  • B. 802.11 divides the 2.4 GHz into 14 channels.
  • C. 802.11b is superior to 802.11a due to support for data rates up to 54 Mb/s.
  • D. 802.11b is intended to compensate for the half-duplex nature of wireless communications.
  • E. 802.11g is not as widely accepted due to production costs.
Answer : B,D


Question No : 5
How does TCP differ from UDP? (Choose two.)
  • A. TCP provides best effort delivery.
  • B. TCP provides synchronized communication.
  • C. TCP segments are essentially datagrams.
  • D. TCP provides sequence numbering of packets.
  • E. TCP uses broadcast delivery.
Answer : B,D


Question No : 6
Refer to the exhibit.

A network has been planned as shown. Which three statements accurately describe the
areas and devices in the network plan? (Choose three.)
  • A. Network Device A is a switch.
  • B. Network Device B is a switch.
  • C. Network Device A is a hub.
  • D. Network Device B is a hub.
  • E. Area 1 contains a Layer 2 device.
  • F. Area 2 contains a Layer 2 device.
Answer : A,D,E


Question No : 7 
An Ethernet cable is attached to a PC NIC and then attached to a switch port. The PC
power is turned on and the switch port link LED turns green. The link light indicates what
two conditions? (Choose two.)
  • A. Layer 2 communication has been established between the PC and switch.
  • B. The PC has received a DHCP address.
  • C. Traffic is being sent from the switch to the PC.
  • D. If flashing, the green LED indicates port speed of 100 Mb/s.
  • E. The Layer 1 media is functioning between the PC and switch.
  • F. The switch port is functioning as a half-duplex connection.
Answer : A,E

Question No : 8 
On a live network, which commands will verify the operational status of router interfaces?
(Choose two.)
  • A. Router# show interfaces
  • B. Router# show ip protocols
  • C. Router# debug interface
  • D. Router# show ip interface brief
  • E. Router# show start
Answer : A,D

Question No : 9 
A small company has a Class C network address and needs to create five subnets, each
accommodating 25 hosts. Which subnet mask needs to be configured?
  • A. 255.255.240.0
  • B. 255.255.255.128
  • C. 255.255.255.192
  • D. 255.255.255.224
  • E. 255.255.255.240
  • F. 255.255.255.248
Answer : D

Question No : 10 - Topic 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
Answer : D


Question No : 11 - Topic 1
Which two protocols does DNS use from the TCP/IP layer? (Choose two.)
  • A. ARP
  • B. ICMP
  • C. IP
  • D. SCTP
  • E. TCP
  • F. UDP
Answer : E,F

Question No : 12 - Topic 1
Refer to the exhibit.

Host A is sending a packet to Host B for the first time. What destination MAC address will
Host A use in the ARP request?
  • A. 192.168.0.1
  • B. 172.16.0.50
  • C. 00-17-94-61-18-b0
  • D. 00-19-d3-2d-c3-b2
  • E. ff-ff-ff-ff-ff-ff
  • F. 255.255.255.255
Answer : E


Question No : 13 - Topic 1
What is the maximum number of bits that can be borrowed to create subnets if a Class B
network address is being used?
  • A. 2
  • B. 6
  • C. 8
  • D. 14
  • E. 16
Answer : D

Question No : 14 - Topic 1
A new LAN segment is allocated the network number 172.16.0.0/25. What range of
addresses are available for hosts on that network?
  • A. 172.16.0.1 through 172.16.0.254
  • B. 172.16.0.1 through 172.16.0.126
  • C. 172.16.0.129 through 172.16.0.254
  • D. 172.16.0.1 through 172.16.1.254
  • E. 172.16.1.1 through 172.16.1.126
  • F. 172.16.1.1 through 172.16.1.254
Answer : B

Question No : 15 - Topic 1
Which three network addresses are reserved for private network use? (Choose three.)
  • A. 10.0.0.0
  • B. 172.15.0.0
  • C. 172.31.0.0
  • D. 192.162.24.0
  • E. 192.168.255.0
  • F. 224.192.0.0
Answer : A,C,E
Network Administrator Skills Experience I have been in the IT field for five years, Five years experience in networking, Managing Linux system, Hardware software installation and deskstop system management etc. Worked with three different companies and personal contracts..

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