1
Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this network?
address translation
DHCP services
ftpd
web server
2
Which TCP/IP model layer creates additional overhead on network resources due to acknowledgments, tracking, and retransmission of data?
internet
transport ***
application
network access
3
Which physical connector type is used for a serial V.35 connection to the CSU/DSU?
4
Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?
Connection 1 - rollover cable
Connection 2 - straight-through cable
Connection 3 - crossover cable
Connection 1 - crossover cable
Connection 2 - rollover cable
Connection 3 - crossover cable
Connection 1 - straight-through cable
Connection 2 - crossover cable
Connection 3 - crossover cable
Connection 1 - straight-through cable
Connection 2 - crossover cable
Connection 3 - straight-through cable
***Connection 1 - crossover cable
Connection 2 - straight-through cable
Connection 3 - crossover cable
5
Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?
172.16.128.0 255.255.255.224
172.16.128.0 255.255.0.0
172.16.128.0 255.255.192.0
172.16.128.0 255.255.224.0
172.16.128.0 255.255.255.192
6
Which prompt represents the appropriate mode used for the copy running-config startup-config command ?
Switch-6J>
Switch-6J#***
Switch-6J(config)#
Switch-6J(config-if)#
Switch-6J(config-line)#
7
What can the user do from the command prompt, Router(config-line)# ?
Configure one of the network interfaces.
Configure one of the physical or virtual lines.
Verify the running configuration on the device.
Configure the parameters for one of the routing protocols.
8
A technician is asked to secure the privileged EXEC mode of a switch by requiring a password. Which type of password would require this login and be considered the most secure?
console
***enable
enable secret
VTY
9
Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two.)
Router(config)# line vty 0 3
Router(config-line)# password c13c0
Router(config-line)# login
The entries specify three Telnet lines for remote access.
The entries specify four Telnet lines for remote access.
The entries set the console and Telnet password to "c13c0".
Telnet access will be denied because the Telnet configuration is incomplete.
Access will be permitted for Telnet using "c13c0" as the password.
10
Which option shows the PDU that contains the Layer 3 source and destination addressing for a packet?
16
Refer to the exhibit. A network administrator remotely accesses the CLI of RouterB from PC1 using Telnet. Which statement is true about this connection?
The data is automatically encrypted.
A Telnet server process is running on PC1.
The connection is made through a VTY session on the router.
A GET request was sent to RouterB to retrieve data during this session.
17
Which exhibit shows the interface that is configured by the command, router(config)# interface serial 0/0/1?
18
When connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to acknowledge that the data was received and to request the retransmission of missing data?
IP
UDP
Ethernet
a connectionless acknowledgement
an upper-layer, connection-oriented protocol or service
19
Refer to the exhibit. Assume all devices are using default configurations. How many subnets are required to address the topology that is shown?
1
3
4
***5
7
20
Refer to the exhibit. Host A sends 1000 bytes of Telnet data to host B. What does host B send back if it only receives the first 500 bytes?
Source 23 Destination 49321 Seq 1000 Ack 500
Source 23 Destination 49321 Seq 500 Ack 1000
Source 23 Destination 49321 Seq 500 Ack 500
Source 23 Destination 49321 Seq 1000 Ack 501
Source 23 Destination 49321 Seq 501 Ack 1000
Source 23 Destination 49321 Seq 501 Ack 501
21
Refer to the exhibit. Which two options correctly indicate the number and type of network domains that are shown? (Choose two.)
one broadcast domain
three broadcast domains
six broadcast domains
five collision domains
six collision domains
22
A network technician is tasked with setting up a network for six users, but the users should be able to use their accounts to log on from any of the six computers. What type of network should be used?
workgroup
P2P applications
peer-to-peer network
client-server network
23
Which statement is true about Layer 3 addresses?
They are physical addresses.
They are used in routing decisions.
They are only used on local networks.
They are altered each time a packet crosses a router.
24
Which OSI layer does IP rely on to determine whether packets have been lost and to request retransmission?
application
presentation
session
transport**
25
Refer to the exhibit. RouterB is configured properly. The Ethernet interface Fa0/0 of RouterA is configured with the use of the commands that are shown. However, a ping from the Fa0/0 interface of RouterA to the Fa0/0 interface of RouterB is unsuccessful. What action should be taken on RouterA to solve this problem?
Use the description command on the FastEthernet interface Fa0/0.
Configure the clock rate of the FastEthernet interface Fa0/0.
Use the no shutdown command on the FastEthernet interface Fa0/0.
Reboot the router.
26
Refer to the exhibit. Which layered network model is shown in the diagram?
Cisco
IETF
OSI - 7
TCP/IP -4
27
Refer to the exhibit. Host A wants to connect to host B on a different network. Which three IP addresses can be assigned to host A to enable this connectivity? (Choose three.)
172.16.11.36
172.16.11.95
**172.16.11.88
**172.16.11.70
172.16.11.64
**172.16.11.67
28
What happens when a host station receives a frame that contains its own MAC address in the destination field?
The Layer 2 information is removed and the frame is pushed up to Layer 3.
The host station will copy the information to its buffers and send it back out.
The frame originated from the host and will be ignored.
The Layer 3 information is added to the frame.
29
Refer to the exhibit. When computer A sends a frame to computer D, what computers receive the frame?
only computer D
only computer A and computer D
only computer B, computer C, and computer D
all computers
30
Refer to the exhibit. PC1 is unable to access PC2. To troubleshoot this problem, the technician needs to confirm that the next hop interface is operational. Which default gateway address should the technician ping from PC1 to confirm this?
10.0.0.254
192.168.0.249
192.168.0.250
10.0.1.254
31
Which range of port numbers are reserved for services that are commonly used by applications that run on servers?
0 to 255
0 to 1023
1024 to 49151
***49152 to 65535
32
Refer to the exhibit. The ping 127.0.0.1 command is issued on the local host. What do the ping results indicate?
The local host can send packets on the local network.
The TCP/IP stack on the local host operates properly.***
The local host has full connectivity to the default gateway.
The local host has full connectivity to the remote network.
33
Refer to the exhibit. In a network, PC1 sends a message to PC2. The frame received at PC2 is shown. What information in this frame determines the correct destination application?
timing and synchronization bits
destination and source physical addresses
destination and source logical network addresses
destination and source process numbers
34
Which OSI layer addressing is required to route packets between two networks?
Layer 1
Layer 2
Layer 3**
Layer 4
35
A user enters http://www.cisco.com/web1.htm in the address line of a browser. Which statement is true about this transaction?
The "http" portion indicates the protocol that is being used.***
The "web1.htm" portion is the specific service name.
The retrieved web page will be displayed in URL code.
The "www.cisco.com" is the name of the web page file that is called.
36
Refer to the exhibit. Which type of network design is shown?
client/server
wide area
dedicated server
peer-to-peer
37
Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the organization. What is the likely cause of the problem?
Hosts A and B are not on the same subnet as host C.
The IP addresses on the router serial interfaces are wrong.
The subnet mask on host C is improperly configured.
The FastEthernet interface fa0/0 of router 1 is wrongly configured.
38
Which password is automatically encrypted when it is created?
vty
aux
console
enable secret***
enable password
39
When must a router serial interface be configured with the clock rate command?
when the interface is functioning as a DTE device
when the interface timers have been cleared
when the connected DTE device is shut down
when the interface is functioning as a DCE device ***
40
Which device should be used for enabling a host to communicate with another host on a different network?
switch
hub
router **
host
41
What type of network is maintained if a server takes no dedicated role in the network?
mainframe
client/server
peer-to-peer
centralized
42
Refer to the exhibit. An employee wants to access the organization intranet from home. Which intermediary device should be used to connect the organization intranet to the Internet to enable this access?
hub
switch
router
wireless access point
43
Refer to the exhibit. A network administrator is troubleshooting a link that is down between Router1 and Router2. To correct the problem, which wire pairs need to be switched on one of the Ethernet cable ends?
pair 1 and pair 2
pair 1 and pair 3
pair 2 and pair 3
pair 2 and pair 4
44
Which of the following are the address ranges of the private IP addresses? (Choose three.)
10.0.0.0 to 10.255.255.255
200.100.50.0 to 200.100.25.255
150.150.0.0 to 150.150.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
127.16.0.0 to 127.31.255.255
45
What three statements are true about network layer addressing? (Choose three.)
Network layer addressing uses a hierarchy.
It uses addresses that are 48 bits in length.
It is used by Ethernet switches to make forwarding decisions.
It does not support broadcasts. ***
It uses a method by which the network portion of an address can be identified.
Network layer addressing identifies each host distinctly. ***
46
A user sees the command prompt: Router(config-if)# . What task can be performed at this mode?
Reload the device.
Perform basic tests.
***Configure individual interfaces.
Configure individual terminal lines.
47
Refer to the exhibit. Host A is accessing multiple servers. Which combination of port number and address will uniquely identify a particular process running on a specific server?
MAC address of the server and port number of the service
IP address of the host and port number of the service
MAC address of the host and port number of the service
**IP address of the server and port number of the service
48
Refer to the exhibit. A PC is communicating with another PC on a remote network. The two networks are connected by three routers. Which action will help to identify the path between the hosts?
Use the ipconfig command at the host.
Use the ipconfig/all command at the destination.
Use the tracert command at the host.
Use the ping command at the destination.
49
What information can be gathered by using the command netstat?
the default gateway
the routing protocol
active TCP connections **
the locally configured subnet mask
50
Refer to the exhibit. Host A is transmitting data to host B. Which address combination will be used as the data leaves the Router1 Fa0/1 interface?
Destination IP: 192.168.72.2 Source MAC: 0007.C2B4.3421
***Destination IP: 192.168.10.4 Source MAC: 0030.8596.DE81
Destination IP: 192.168.10.4 Source MAC: 0007.C2B4.3421
Destination IP: 192.168.72.2 Source MAC: 0030.8596.DE81
51
Which router component will have contents erased when the command erase startup-config is issued?
flash
RAM
ROM
NVRAM**
52
Refer to the exhibit. While configuring a network, a technician wired each end of a Category 5e cable as shown. Which two statements are true about this setup? (Choose two.)
The cable is suitable for connecting a switch to a router Ethernet port.
The cable is suitable for connecting dissimilar types of devices.
The cable is unusable and must be rewired.
The cable is terminated in a way that the transmit pin is wired to the receive pin.
The cable simulates a point-to-point WAN link.
