Testų klausimų pavyzdys
On a point-to-point Frame Relay connection, what does each point-to-point connection require?
A. A unique encapsulation type
B. A separate subinterface
C. An IPX address
D. A direct physical connection
Which of the following is an example of an IGP (Interior Gateway Protocol)?
What command is used to configure a subinterface that will forward broadcasts and routing updates?
A. router(config-if)#interface serial 1 multipoint
B. router(config-if)#interface serial 1 point-to-point
C. router(config-if)#interface serial 1.1 multipoint
D. router(config-if)#interface serial 1.1 point-to-point
What can only be done in privileged mode on Cisco routers?
A. Enter Commands
B. Check routing tables
C. Monitor performance
D. Change the configuration
What ISDN device connects four-wire ISDN wiring to the two-wire local loop facility?
What are the two authentication options supported by PPP?
A. PAP and clear text
B. PAP and CHAP
C. CHAP and clear text
D. PPP does not support authentication
What term describes all nodes on the same VLAN ID that are attached to the same switched port?
What is a VLAN used to create?
A. Autonomous systems
B. Broadcast domains
C. Network Sectors
D. Virtual sections
What do ISDN protocols that begin with Q identify?
D. Data rates
What is the encapsulation type on a router for a Novell network running version 3.12?
What wildcard mask will permit traffic only on network 22.214.171.124?
What is the hex value of the binary number 11100010?
What protocol in the TCP/IP suite can detect/learn the MAC addresses of a computer that is associated with a particular IP address?
D. Proxy RARP
Which of the following is the correct order of steps in the Cisco router system startup routine?
A. (1) locate and load operating system, (2) load bootstrap, (3) test hardware, (4) locate and load entire configuration file.
B. (1) test hardware, (2) load bootstrap, (3) locate and load operating system, (4) locate and load entire configuration file.
C. (1) load bootstrap, (2) locate and load entire configuration file, (3) test hardware, (4) locate and load operating system.
D. (1) test hardware, (2) load bootstrap, (3) locate and load entire configuration file, (4) locate and load operating system.
What PPP protocol is used to establish, maintain and terminate the point-to-point connection?
What type of switching method is used when a switch only reads the destination address before forwarding the frame?
B. Read and send
C. Copy and send
Which of the following is the ISDN Layer 2 signaling protocol?
Which best describes the structure of a MAC address?
A. 16 bit network code plus 16 bit serial number
B. 16 bit vendor code plus 16 bit serial number
C. 24 bit vendor code plus 24 bit serial number
D. 24 bit network identity plus 24 bit host identity
Which best describes the function of the physical layer?
A. Defines the electrical and functional specifications for the link between end systems.
B. Provides reliable transit of data across a physical link.
C. Provides connectivity and path selection between two end systems.
D. Concerned with physical addressing, network topology and media access.
Which packet-switched WAN technologies are characterized by the use of Permanent Virtual Circuits (PVCs)?
A. Frame Relay and ISDN
B. Frame Relay and X.25
C. ISDN and X.25
D. ISDN only
What do HDLC, PPP, Frame Relay and ISDN have in common?
A. They operate at the physical layer.
B. They operate at the network layer.
C. They operate at the data link layer.
D. They are proprietary standards.
Which layer of the OSI model is responsible for reliable network communication between end nodes and provides mechanisms for the establishment, maintenance, and termination of virtual circuits, transport fault detection and recovery, and information flow control?
A. Physical Layer
B. Data Link Layer
C. Network Layer
D. Transport Layer
What technique does 802.1q use to implement VLANs?
C. Source bridging
D. Frame tagging
What is the function of the first phase of PPP negotiation?
A. Link termination
B. Link-quality determination
C. Link establishment and configuration negotiation
D. Network-layer protocol configuration negotiation
What information does testing a network by using the show ip route command provide?
A. Whether the data-link line protocol is operational.
B. Whether a routing table entry exists for the target network.
C. Which router in a path is the last one to be reached.
D. Path-to-host reliability, delays over the path, and whether the host can be reached.
What is the function of the framing bit in an ISDN physical-layer frame?
A. Identifies user data
B. Provides synchronization
C. Adjusts the average bit value
D. Contention resolution
Which switch type provides connections between ports of like bandwidth?
You want to create a message to let people know a little something about the network or router when they log on - what command enables you to do this?
A. banner msg
B. banner motd
C. daily msg
D. daily motd
How many bits are in the network/subnet portion of a class B network with a subnet mask of 255.255.240.0?
What is the process of allocating bandwidth to different sources on the same media?
A. Time Division Multiplexing
B. Bandwidth allocation
C. Load distribution
D. Packet switching
What command is used to configure an interface for PPP encapsulation?
A. router>encapsulation ppp
B. router#encapsulation ppp
C. router(config)#encapsulation ppp
D. router(config-if)#encapsulation ppp
Which of the following is a characteristic of TCP?
C. Divides outgoing messages into segments
D. Provides no software checking for segments
Routers make forwarding decisions based on which kind of address?
B. layer 2
Which memory component of a router loses its content when the router is turned off?
What is the meaning of a caret symbol (^) after entering a command on a Cisco router?
A. It indicates that you are in help mode
B. It indicates that you are in privileged mode
C. It indicates the location of an error in a command string
D. It indicates that more information must be entered to complete the command
Which port number is used for DNS?
You have connected a new LAN and made appropriate changes to your Cisco router configuration. What command do you issue to save the new version of the configuration file to NVRAM?
A. copy config startup-config
B. copy running-config startup-config
C. configure memory
D. copy running-config nvram
What router command will display the Frame Relay tables?
A. show interface
B. show frame-relay route
C. show ip route
D. show frame-relay map
What is true concerning a bridge and its forwarding decisions?
A. They operate at OSI layer 2 and use IP addresses to make decisions.
B. They operate at OSI layer 3 and use IP addresses to make decisions.
C. They operate at OSI layer 2 and use MAC addresses to make decisions.
D. They operate at OSI layer 3 and use MAC addresses to make decisions.
Routers operate primarily at what layer of the OSI model?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
What is the maximum number of bits that can be borrowed from the host potion of a class C network to create subnets?
Which of the following commands enables IPX routing?
A. ipx maximum-paths
B. ipx routing
C. ipx network
D. router novell-rip
Which Cisco IOS command allows you to view the placement of an access list?
A. show access list
B. show access-group
C. show ip interface
D. show interface
How are DLCIs used by Frame Relay?
A. Identify users
B. Identify physical connections
C. Identify logical connections
D. Phone company tariffs
How are networks 10.0.0.0, 172.16.0.0, and 192.168.10.0 often described?
A. Private IP networks
B. Illegal IP networks
C. Public IP networks
D. Broadcast IP networks
How many total subnets can be created if four bits are borrowed from the host field? (including the unassignable 0 and all 1s subnets)
What type of network design is the most scalable?
Which ISDN channel is used to establish call setup?
A. Channel D
B. Channel B
C. Channel Call setup
D. Channel C
Which of the following best describes the address 126.96.36.199 in an unsubnetted environment?
A. Class A broadcast address
B. Class B host address
C. Class B broadcast address
D. Class C host address
Which layer of the OSI model is responsible for presenting data in a form that the receiving device can understand?
If a node were moved from one network to another which of the following would be true about the configuration of that node?
A. Both the IP and MAC address will both have to change.
B. Nothing will have to change in configuration of the node.
C. The IP address will remain the same and MAC will change.
D. The IP address will change, the MAC address will stay the same.
What information does testing a network by using telnet provide?
A. Whether the TCP/IP application as well as lower-layer services function properly.
B. Path-to-host reliability, delays over the path, and whether the host can be reached.
C. Which router in a path is the last one to be reached.
D. Only whether the physical interface is operational.
Which command is used to discover the configuration register setting?
A. show register
B. show running-config
C. show version
D. show startup-config
Which type of routing protocol is RIP?
A. Distance vector
B. Link State
D. Spanning tree
What is the result of the AND boolean operation between address 188.8.131.52 and mask 255.255.255.192?
What is a mandatory Frame Relay configuration parameter?
The star/extended star topology uses what type of standard?
A. Token ring
B. Ethernet 802.3
C. Ethernet 802.5
Which type of access list uses the number range 100-199?
A. IPX standard
C. IP standard
D. IP extended
What is the correct term for when routes are learned automatically?
A. Static routing
B. Automatic routing
C. Enhanced routing
D. Dynamic routing
Which of the following is the default order of Spanning Tree Protocol states?
A. 3, 4, 1, 5, 2
B. 4, 3, 1, 2, 5
C. 2, 1, 4, 3, 5
D. 1, 4, 3, 5, 2
What correctly describes the five conversion steps of data encapsulation?
What is layer 3 of the OSI model called?
C. Data link
What does Frame Relay use to prevent routing loops?
A. Holddown timers
B. Lower convergence times
C. Increased router updates
D. Split horizon
What type of Frame Relay message is used to ensure that both sides will continue to see an active connection?
B. Call reference
D. Information element
At what time interval does IGRP send routing updates?
A. 120 seconds
B. 30 seconds
C. 60 seconds
D. 90 seconds
What allows a router to accept a packet on one interface and forward it to another interface?
A. Broadcast forwarding
B. Switching function
C. Filter and control function
D. Path determination
Which of the following is the approximate number of hosts supported in a class B unsubnetted network?
B. 254 per subnet
C. 65 thousand
D. 16 million
What does IPX use in the host portion of an address to eliminate the use of ARP requests?
Select the correct IOS command for configuring IGRP as the routing protocol.
A. Router#router igrp 100
B. Router(config-router)>router igrp 100
C. Router(config)#router igrp 100
D. Router(config-if)#set router igrp 100
Which of the following correctly describes a method for specifying how a router loads the Cisco IOS software?
A. Designate fallback sources for the router to use in sequence from NVRAM.
B. Configure the Cisco IOS software image for the location where it will bootstrap.
C. Manually boot a default system image at a virtual terminal.
D. Manually boot a default system image at the network server