مرحبآ بكم من جديد اقدم لكم اليوم المنهج الكامل لسسكو وهو مقتبس من شركة سسكو مع ترخيص من قبل الشركه
Question 1:
What is the most common LAN technologies used in networking today?
A. Ethernet, token ring, DecNET
B. Ethernet, token ring, FDDI
C. Ethernet, DecNET, FDDI
D. Ethernet, token ring, ARCnet
Question 2:
Where is the Layer 2 addresses found on a workstation?
A. In the routing table
B. On the network interface card
C. In the name server table
D. It is located on the DHCP server
Question 3:
Network File System (NFS), SQL, and X Window System all operate at which Layer of the OSI Model?
A. Application
B. Presentation
C. Session
D. Transport
Question 4:
Which OSI Layer determines best path selection?
A. Transport Layer
B. Network Layer
C. Data Link Layer
D. Physical Layer
Question 5:
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
Question 6:
Host A and host Z are on different subnets. If an ARP request is sent from host A in search of host Z's MAC address, what will happen?
A. There will be no response.
B. The router will respond with the MAC address of host Z.
C. The router will respond with it's own MAC address.
D. The router will forward the request to the correct subnet so host Z can respond.
Question 7:
What happens after a collision has occurred on a network after the jam signal is sent?
A. The router clears the route and notifies the source to resend
B. All stations stop sending frames for a randomly selected time period
C. A keepalive signal is generated to hold the message until the route clears
D. The source station waits for the collision to dissipate and then broadcasts an all clear
Question 8:
Which technique controls the amount of unacknowledged data in transit at any one time and helps enable TCP reliability?
A. Windowing
B. Broadcasting
C. Error recovery
D. Collision avoidance
Question 9:
What happens if host A broadcasts an ARP request looking for the MAC address of host B which is located on the same network as host A?
A. The name server looks at the request and replies with the MAC address of host B.
B. All devices look at the request and any device will reply with the IP address of host B.
C. All devices look at the request and ONLY host B will reply with the MAC address.
D. The nearest router looks at the request and replies with the MAC address of host B or forwards the request to another router.
Question 10:
Which are host Layers of the OSI model?
A. Transport and Network
B. Session and Data Link
C. Application and Network
D. Presentation and Session
Question 11:
Which best describes the function of the Physical Layer?
A. Provides network services to user applications.
B. Establishes, maintains, and manages sessions between applications.
C. Uses a MAC address to provide transmission across media and handles error notification, network topology, and flow control.
D. Provides electrical, mechanical, procedural and functional means for activating and maintaining links between systems.
Question 12:
Why has a layered network model been developed?
A. Stabilizes development times and reduces number of proprietary hardware schemes.
B. Takes a holistic approach to networking and encourages comprehensive engineering solutions.
C. Accelerates evolution.ensures interoperable technology and facilitates modular engineering.
D. Increases complexity and flexibility to deal with multiple sources of hardware.
Question 13:
Which Layer of the OSI model is concerned with the topology of a network?
A. Transport
B. Network
C. Data Link
D. Physical
Question 14:
During data transmission, which technique does TCP use in conjunction with windowing to guarantee that a stream of data sent from one device will be delivered to another device without duplication or data loss?
A. Recovery and flow control
B. Encapsulation and broadcasting
C. Acknowledgement and retransmission
D. Synchronization and acknowledgement
Question 15:
Which network device offers full-duplex, dedicated bandwidth to segments or desktops?
A. Hub
B. Bridge
C. Ethernet switch
D. Router
Question 16:
What is the data-link destination address of a broadcast message?
A. 111.111.111.111
B. 255.255.255.255
C. AAAA.AAAA.AAAA
D. FFFF.FFFF.FFFF
Question 17:
Which Layer of the OSI model handles data encryption?
A. Application
B. Presentation
C. Session
D. Transport
Question 18:
Which of the following is true about a CSMA/CD network?
A. Signals are always sent in multi-frame broadcast mode.
B. One node's transmission goes to the nearest router that sends it directly to the destination.
C. Signals are sent directly to the destination if both the MAC and IP addresses are known by the source.
D. One node's transmission traverses the entire network and is seen and checked by every node.
Question 19:
What correctly describes the five conversion steps of data encapsulation?
A. Data-segments-packets-frames-bits
B. Data-packets-segments-frames-bits
C. Data-frames-segments-packets-bits
D. Data-segments-frames-packets-bits
Question 20:
If a Class B network is sub netted with a mask of 255.255.240.0, how many useable subnets are created?
A. 2
B. 6
C. 14
D. 30
Question 21:
What best describes the functions of the Application Layer?
A. Establishes, manages, and terminates applications
B. Supports communicating components of applications such as e-mail
C. Defines end-to-end delivery of packets
D. Translates between different data formats such as ASCII and EBCDIC
Question 22:
Which networking term is used when a corporation, agency, school, or other organization works together to tie its data, communication, computing, and file servers?
A. Protocol
B. Enterprise
C. Encapsulation
D. Interconnectivity
Question 23:
Which network device provides internetworking and broadcast control?
A. Hub
B. Bridge
C. Ethernet switch
D. Router
Question 24:
Which Layer of the OSI model provides data representation and code formatting?
A. Application Layer
B. Presentation Layer
C. Session Layer
D. Transport Layer
Question 1:
Routers make forwarding decisions based on which kind of address?
A. logical
B. layer 2
C. physical
D. hardware
Question 2:
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
Question 3:
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
Question 4:
What is the prompt of a Cisco router in the priviledged mode?
A. Router>
B. Router#
C. Router(config-if)#
D. Router(config-router)#
Question 5:
Which character is used to enter the help mode?
A.!
B.?
C. *
D. %
Question 6:
Which service does a WAN provide to LANs?
A. Direct routing with error checking
B. IP addressing and secure data transfer
C. High speed multiple access to data networks
D. Exchange of data packets between routers and the LANs they support
Question 7:
If you are unsure of the options (subcommands) for a command, which keystroke(s) should you try on the user interface of a Cisco router?
A. Help
B.?
C. CTRL-H
D. CTRL-P
Question 8:
Which is an example of a data circuit terminating equipment (DCE)?
A. Modem
B. Computer
C. Router
D. Multiplexer
Question 9:
Which of the following are stored in NVRAM?
A. Routing Tables
B. Configuration Files
C. IOS Image
D. Power on diagnostics
Question 10:
Which packet-switched service is more efficient than X.25?
A. Frame Relay
B. Digitial Subscriber Line
C. Asynchronous Transfer Mode
D. Switched Multimegabit Data Service
Question 11:
Which layers of the OSI model do WAN standards describe?
A. Data link and network
B. Network and transport
C. Physical and application
D. Physical and data link
Question 12:
When working with Cisco IOS, at which level of access are users able to view router status but are unable to change router configuration?
A. User mode
B. Enable mode
C. Privileged mode
D. Global configuration mode
Question 13:
Which of the following WAN technologies is a Circuit-Switched Service?
A. Asynchronous Transfer Mode
B. Narrowband ISDN
C. Frame Relay
D. Switched Multimegabit Data Service
Question 14:
What do you press to view the next screen if --More-- is indicated at the bottom of the current screen on a Cisco router user interface?
A. The end key
B. The tab key
C. The spacebar
D. The page down key
Question 15:
In which Layer of the OSI Model do WAN routers operate?
A. Transport Layer
B. Network Layer
C. Data Link Layer
D. Physical Layer
Question 16:
Which WAN protocol supports point-to-point and multipoint configurations?
A. HDLC
B. CHAP
C. PPP
D. ISDN
Question 17:
What is the default user-mode prompt for a Cisco router?
A. #
B. Router#
C. Router>
D. Router%
Question 18:
What do the WAN Physical Layer standards describe?
A. Interface between SDLC and HDLC
B. Interface between DTE and DCE
C. How frames are sent and verified
D. How voice and data traffic are routed
Question 19:
What best describes Frame Relay?
A. Uses high quality digital facilities with no error correction
B. Digital service that transmits voice and data over existing telephone lines
C. Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits
D. Supports point-to-point and multipoint configurations over high speed analogy circuits
Question 20:
Which memory component of a router loses its content when the router is turned off?
A. RAM
B. ROM
C. FLASH
D. NVRAM
Question 21:
Which Cisco IOS command is used to enter privileged mode?
A. admin
B. root
C. enable
D. privileged
Question 22:
Which of the following WAN technologies is a Cell-Switched Service?
A. Frame Relay
B. ISDN
C. Asynchronous Transfer Mode
D. POTS
Question 23:
Which protocol does a WAN use to make path determination decisions?
A. RIP
B. IGRP
C. IP
D. OSPF
Question 24:
Which keystroke will recall the previous command entry on a Cisco router user interface?
A. Left arrow
B. Right arrow
C. Down arrow
D. Up arrow
Question 25:
What do WAN Data link protocols describe?
A. The electrical, mechanical, operational, and functional connections
B. The process used for error detection
C. How frames are carried between systems
D. How applications are started and stopped
Question 1:
Which port is used to initially configure a router?
A. Auxiliary
B. Console
C. Serial
D. BRI
Question 2:
What is the first thing the router does when power is turned on?
A. Copies the IOS into RAM
B. Executes a bootstrap program
C. Configures the interfaces for IP routing
D. Loads the Startup-Configurations file into RAM
Question 3:
Someone got into a router configuration file and changed the password to access privileged mode. Which mode on the router enables you to recover passwords?
A. SETUP
B. RXBOOT
C. Privileged EXEC
D. Global configuration
Question 4:
What is the correct command to go from the user EXEC mode to the privileged EXEC mode?
A. login
B. enable
C. interface type number
D. configure terminal
Question 5:
Which command displays information about the current Cisco IOS software version running on a router?
A. show stacks
B. show version
C. show interface
D. show startup-config
Question 6:
What is stored in working RAM and is constantly updated when the router is working properly?
A. IOS
B. Command Executive
C. Routing Table
D. Active Configuration File
Question 7:
How many Telnet sessions can a Cisco router have simultaneously?
A. 10
B. 7
C. 5
D. 1
Question 8:
Which Cisco IOS command displays routing table entries?
A. ping
B. trace
C. show ip route
D. show interface
Question 9:
Which Cisco IOS command shows the configuration file stored in NVRAM?
A. show version
B. show running-config
C. show startup-config
D. show interfaces
Question 10:
What is the router prompt for the interface configuration mode?
A. Router (config) #
B. Router (config-if) #
C. Router (config-line) #
D. Router (config-router) #
Question 11:
Which router component stores configuration files even when power is off?
A. RAM
B. ROM
C. Flash
D. NVRAM
مدير التكنكل سبورت لمركز الفضاء
موضوع: الان وحصريآ المنهج الكامل لسسكو 
الأحد سبتمبر 02, 2007 12:03 pm
