Cisco Certified Support Technician Practice Questions

Which communication tool allows real-time collaboration?
A. Wiki
B. Email
C. Weblog
D. Instant Messaging

Which communication tool allows real-time collaboration?
A. Wiki
B. Email
C. Weblog
D. Instant Messaging

Instant Messaging

A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (pick three)
A. Regenerating Data Signals
B. Acting as a client or a server
C. Providing a channel over which messages travel
D. Applying security settings to control the flow of data
E. Notifying other devices when errors occur
F. Serving as the source or destination of the messages

Regenerating data signals
Applying security settings to control the flow of data
Notifying other devices when errors occur

A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?
A. DSL
B. Dial-up
C. Satellite
D. Cell modem
E. Cable modem

DSL

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?
A. LAN
B. MAN
C. WAN
D. WLAN

WAN

Which connection provides a secure CLI session with encryption to a Cisco network device?
A. A console connection
B. An AUX connection
C. A Telnet connection
D. An SSH connection

An SSH connection

An administrator uses the Ctr-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
A. To restart the ping process
B. To interrupt the ping process
C. To exit to a different configuration mode
D. To allow the user to complete the command

To interrupt the ping process

What function does pressing the Tab key have when entering a command in IOS?
A. It aborts the current command and returns to configuration mode
B. It exits configuration mode and returns to user EXEC mode
C. It moves the cursor to the beginning of the next line
D. It completes the remainder of a partially typed word in a command

It completes the remainder of a partially typed word in a command

An administrator wants to change the name of a brand new switch, using the hostname command as shown. What prompt will display after the command is used?
switch(config)# hostname My Switch
A. My Switch(config)#?
B. Switch(config)#?*
C. MySwitch(congig)#?
D. My(config)#?
E. Switch#

Switch(Config)#?*

After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?
A. The new configuration will be stored in flash memory
B. The new configuration will be loaded if the switch is restarted
C. The current IOS file will be replaced with the newly configured file
D. The configuration changes will be removed and the original configuration will be restored

The new configuration will be loaded if the switch is restarted

14. Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?

A. 0.0.0.0
B. 0.0.0.1
C. 127.0.0.1
D. 192.168.1.1
E. 255.255.255.255

127.0.0.1

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

A. ARP
B. DHCP
C. DNS
D. FTP
E. NAT
F. PPP

DHCP
DNS
FTP

Which two protocols function at the internet layer? (Choose two.)

A. ARP
B. BOOTP
C. ICMP
D. IP
E. PPP

IP
ICMP

Which address on a PC does not change, even if the PC is moved to a different network?
A. IP address
B. Default gateway address
C. MAC address
D. Logical address

MAC address

What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?
A. ARP, multicast
B. DNS, unicast
C. DNS broadcast
D. ARP, broadcast
E. PING, multicast

ARP, broadcast

What device is commonly used to verify a UTP cable?
A. A multimeter
B. An Optical Time Domain Reflectometer
C. A cable tester
D. An ohmmeter

A cable tester

What needs to be checked when testing a UTP network cable?
A. Capacitance
B. Wire map
C. Inductance
D. Flexibility

Wire map

Which function is provided by TCP?
A. Data encapsulation
B. Detection of missing packets
C. Communication session control
D. Path determination for data packets

Detection of missing packets

What does a router use to determine where to send data it receives from the network?
A. An ARP table
B. A routing table
C. The destination PC physical address
D. A switching table

A routing table

A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
A. User executive mode
B. Global configuration mode
C. Any line configuration mode
D. Privileged EXEC mode

Any line configuration mode

Which three statements characterize the transport layer protocols?
A. TCP and UDP port numbers are used by application layer protocols
B. TCP uses port numbers to provide reliable transportation of IP packets
C. UDP uses windowing and acknowledgements for reliable transfer of data
D. TCP uses windowing and sequencing to provide reliable transfer of data
E. TCP is a connection-oriented protocol. UDP is a connectionless protocol

A. TCP and UDP port numbers are used by application layer protocols
D. TCP uses windowing and sequencing to provide reliable transfer of data
E. TCP is a connection-oriented protocol. UDP is a connectionless protocol

What will happen if the default gateway address is incorrectly configured on a host?
A. The host cannot communicate with other hosts on the local network
B. The switch will not forward packets initiated by the host
C. The host will have to use ARP to determine the correct address of the default gateway
D. The host cannot communicate with hosts in other networks
E. A ping rom the host to 127.0.0.1 would not be successful

The host cannot communicate with hosts in other networks

What is an important function of the physical layer of the OSI model?
A. It accepts frames from the physical media.
B. It encapsulates upper layer data into frames.
C. It defines the media access method performed by the hardware interface.
D. It encodes frames into electrical, optical, or radio wave signals.

It encodes frames into electrical, optical, or radio wave signals

Which procedure is used to reduce the effect of crosstalk in copper cables?
A. requiring proper grounding connections
B. twisting opposing circuit wire pairs together
C. wrapping the bundle of wires with metallic shielding
D. designing a cable infrastructure to avoid crosstalk interference
E. avoiding sharp bends during installation

Twisting opposing circuit wire pairs together

Which two statements describe the characteristics of fiber-optic cabling? (Choose two.)
A. Fiber-optic cabling does not conduct electricity.
B. Fiber-optic cabling has high signal loss.
C. Fiber-optic cabling is primarily used as backbone cabling.
D. Multimode fiber-optic cabling carries signals from multiple sending devices.
E. Fiber-optic cabling uses LEDs for single-mode cab?les and laser technology for multimode cables.

Fiber-optic cabling does not conduct electricity
Fiber-optic cabling is primarily used as a backbone cabling

What is contained in the trailer of a data-link frame?
A. logical address
B. physical address
C. data
D. error detection

Error detection

What is the auto-MDIX feature on a switch?
A. the automatic configuration of an interface for 10/100/1000 Mb/s operation
B. the automatic configuration of an interface for a straight-through or a
crossover Ethernet cable connection
C. the automatic configuration of full-duplex operation over a single Ethernet copper or optical cable
D. the ability to turn a switch interface on or off accordingly if an active connection is detected

The automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

How does a Layer 3 switch differ from a Layer 2 switch?
A. A Layer 3 switch supports VLANs, but a Layer 2 switch does not
B. An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches
C. A Layer 3 switch maintains an UP address table instead of a MAC address table
D. A Layer 3 switch learns the MAC addresses that are associated with each of its ports. However, a Layer 2 switch does not.

An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches

What is the purpose of the routing process?
A. to encapsulate data that is used to communicate across a network
B. to select the paths that are used to direct traffic to destination networks
C. to convert a URL name into an IP address
D. to provide secure Internet file transfer
E. to forward traffic on the basis of MAC addresses

To select the paths that are used to direct traffic to destination networks

Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?
A. ARP
B. DNS
C. NAT
D. SMB
E. DHCP
F. HTTP

NAT

Consider the IP address configuration of PC1 listed below. What is a description of the default gateway address?
IP address: 192.168.1.95
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.254
A. It is the IP address of the Router1 interface that connects the company to the Internet.
B. It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
C. It is the IP address of Switch1 that connects PC1 to other devices on the same LAN.
D. It is the IP address of the ISP network device located in the cloud.

It is the IP address of the Router1 interface that connects the PC1 LAN to Router1

Which of the following are primary functions of a router? (Choose two)
A. Packet switching
B. Micro segmentation
C. Domain name resolution
D. Path selection
E. Flow control

Packet switching
Path selection

Which two statements correctly describe a router memory type and its contents? (Choose two)
A. ROM is nonvolatile and stores the running IOS
B. FLASH is nonvolatile and contains a limited portion of the IOS
C. RAM is volatile and stores the running configuration
D. NVRAM is nonvolatile and stores a full version of the IOS
E. ROM is nonvolatile and stores bootup information

RAM is volatile and stores the running config
ROM is nonvolatile and stores bootup informaiton

What happens when part of an Internet VoIP transmission is not delivered to the destination?
A. A delivery failure message is sent to the source host
B. The part of the VoIP transmission that was lost is re-sent
C. The entire transmission is re-sent
D. The transmission continues without the missing portion

The transmission continues without the missing portion

Which three IP addresses are private? (Choose 3)
A. 10.172.168.1
B. 172.32.5.2
C. 192.167.10.10
D. 172.20.4.4
E. 192.168.5.254
F. 224.6.6.6

10.172.168.1
172.20.4.4
192.168.5.254

How many bits make up the single IPv6 hextet :10cd:?
A. 4
B. 8
C. 16
D. 32

16

What is the purpose of ICMP messages?
A. to inform routers about network topology changes
B. to ensure the delivery of an IP packet
C. to provide feedback of IP packet transmissions*
D. to monitor the process of a domain name to IP address resolution

To provide feedback of IP packet transmissions

Which subnet would include the address 192.168.1.96 as a usable host address?
A. 192.168.1.64/26
B. 192.168.1.32/27
C. 192.168.1.32/28
D. 192.168.1.64/29

192.168.1.64/26

A network administrator needs to monitor network traffic to and from servers in a data center. Which features of an IP addressing scheme should be applied to these devices?
A. random static addresses to improve security
B. addresses from different subnets for redundancy
C. predictable static IP addresses for easier identification
D. dynamic addresses to reduce the probability of duplicate addresses

Predictable static IP addresses for easier identification

A host PC has just booted and is attempting to lease an address through DHCP. Which two messages will the client typically broadcast on the network? (Choose two.)
A. DHCPDISCOVER
B. DHCPOFFER
C. DHCPREQUEST
D. DHCPACK
E. DHCPNACK

DHCPDISCOVER
DHCPREQUEST

What is the purpose of the network security accounting function?
A. to require users to prove who they are
B. to determine which resources a user can access
C. to keep track of the actions of a user
D. to provide challenge and response questions

To keep track of the actions of a user

When applied to a router, which command would help mitigate brute-force password attacks against the router?
A. exec-timeout 30
B. service password-encryption
C. banner motd $Max failed logins = 5$
D. login block-for 60 attempts 5 within 60

login block-for 60 attempts 5 within 60

A particular website does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?
A. ipconfig /all
B. arp -a
C. ipconfig /displaydns
D. nslookup

ipconfig /displaydns

What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)
A. broadcast SSID
B. MAC filtering enabled
C. WEP encryption enabled
D. PSK authentication required
E. default administrator password

Broadcast SSID
Default admin password

Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?
A. EAP
B. PSK
C. WEP
D. WPA

WPA

______ is a best-effort, connectionless application layer protocol that is used to transfer files.

TFTP

Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)
A. media
B. wireless NIC
C. custom adapter
D. crossover cable
E. wireless bridge
F. wireless client software

Wireless NIC
Wireless client software

A host is accessing an FTP server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
A. regenerating data signals
acting as a client or a server
B. providing a channel over which messages travel
C. applying security settings to control the flow of data
D. notifying other devices when errors occur
E. serving as the source or destination of the messages

Regenerate data signals
Applying security settings to control the flow of data
Notifying other devices when errors occur

When is a dial-up connection used to connect to an ISP?
A. when a cellular telephone provides the service
B. when a high-speed connection is provided over a cable TV network
C. when a satellite dish is used
D. when a regular telephone line is used

When a regular telephone line is used

On a school network, students are surfing the web, searching the library database, and attending an audio conference with their sister school in Japan. If network traffic is prioritized with QoS, how will the traffic be classified from highest priority to lowest priority?
A. audio conference, database, HTTP
B. database, HTTP, audio conference
C. audio conference, HTTP, database
D. database, audio conference, HTTP

Audio conference, database, HTTP

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
A. FastEthernet0/1
B. VLAN 1
C. vty 0
D. console 0

VLAN 1

A technician uses the ping 127.0.0.1 command. What is the technician testing?
A. the TCP/IP stack on a network host
B. connectivity between two adjacent Cisco devices
C. connectivity between a PC and the default gateway
D. connectivity between two PCs on the same network
E. physical connectivity of a particular PC and the network

The TCP/IP stack on a network host

Place the items in the correct order for PDU encapsulation:
• Data
• Frame header
• Frame trailer
• Transport header
• Network header

Frame header
Network header
Transport header
Data
Frame trailer

Which device should be used for enabling a host to communicate with another host on a different network?
A. switch
B. hub
C. router
D. host

Router

A network technician is measuring the transfer of bits across the company backbone for a mission critical application. The technician notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
A. the amount of traffic that is currently crossing the network
B. the sophistication of the encapsulation method applied to the data
C. the type of traffic that is crossing the network
D. the latency that is created by the number of network devices that the data is crossing
E. the bandwidth of the WAN connection to the Internet
F. the reliability of the gigabit Ethernet infrastructure of the backbone

The amount of traffic that is currently crossing the network
The type of traffic that is crossing the network
The latency that is created by the number of network devices that the data is crossing

Which characteristics describe fiber optic cable? (Choose two.)
A. It is not affected by EMI or RFI.
B. Each pair of cables is wrapped in metallic foil.
C. It combines the technique of cancellation, shielding and twisting to protect data.
D. It has a maximum speed of 100 Mbps.
E. It is the most expensive type of LAN cabling

It is not affected by EMI or RFI
It is the most expensive type of LAN cabling

What are two features of a physical, star network topology? (Choose two.)
A. It is straightforward to troubleshoot.
B. End devices are connected together by a bus.
C. It is easy to add and remove end devices.
D. All end devices are connected in a chain to each other.
E. Each end system is connected to its respective neighbor

It is straightforward to troubleshoot
It is easy to add and remove end devices