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خذ اختبارات أخرى عبر الإنترنت
السؤال #1
Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?
A. HTTP
B. IP
C. TCP
D. Telnet
E. UDP
عرض الإجابة
اجابة صحيحة: B
السؤال #2
Which protocol uses a connection-oriented service to deliver files between end systems?
A. TFTP
B. DNS
C. FTP
D. SNMP
E. RIP
عرض الإجابة
اجابة صحيحة: C
السؤال #3
What must occur before a workstation can exchange HTTP packets with a web server?
A. A UDP connection must be established between the workstation and its default gateway
B. A UDP connection must be established between the workstation and the web server
C. A TCP connection must be established between the workstation and its default gateway
D. A TCP connection must be established between the workstation and the web server
E. An ICMP connection must be established between the workstation and its default gateway
F. An ICMP connection must be established between the workstation and the web server
عرض الإجابة
اجابة صحيحة: BCE
السؤال #4
Which network device functions only at Layer 1 of the OSI model?
A. bridge
B. hub
C. NIC
D. router
E. switch
عرض الإجابة
اجابة صحيحة: B
السؤال #5
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
B. 172
C. 00-17-94-61-18-b0
D. 00-19-d3-2d-c3-b2
E. ff-ff-ff-ff-ff-ff
F. 255
عرض الإجابة
اجابة صحيحة: BD
السؤال #6
Which statements are true regarding ICMP packets? (Choose two.)
A. They acknowledge receipt of TCP segments
B. They guarantee datagram delivery
C. TRACERT uses ICMP packets
D. They are encapsulated within IP datagrams
E. They are encapsulated within UDP datagrams
عرض الإجابة
اجابة صحيحة: E
السؤال #7
Which three statements are true about the operation of a full-duplex Ethernet network? (Choose three.)
A. There are no collisions in full-duplex mode
B. A dedicated switch port is required for each full-duplex node
C. Ethernet hub ports are preconfigured for full-duplex mode
D. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting
E. The host network card and the switch port must be capable of operating in full-duplex mode
عرض الإجابة
اجابة صحيحة: ABE
السؤال #8
Which two statements describe the operation of the CSMA/CD access method? (Choose two.)
A. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously
B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting
C. The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method
D. After a collision, the station that detected the collision has first priority to resend the lost data
E. After a collision, all stations run a random backoff algorithm
F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data
عرض الإجابة
اجابة صحيحة: B
السؤال #9
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
عرض الإجابة
اجابة صحيحة: B
السؤال #10
Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?
A. Physical
B. Data-link
C. Transport
D. Network
عرض الإجابة
اجابة صحيحة: C
السؤال #11
Which statements accurately describe CDP? (Choose three.)
A. CDP is an IEEE standard protocol
B. CDP is a Cisco proprietary protocol
C. CDP is a datalink layer protocol
D. CDP is a network layer protocol
E. CDP can discover directly connected neighboring Cisco devices
F. CDP can discover Cisco devices that are not directly connected
عرض الإجابة
اجابة صحيحة: C
السؤال #12
SwitchA receives the frame with the addressing shown in the exhibit. According to the command output also shown in the exhibit, how will SwitchA handle this frame?
A. It will drop the frame
B. It will forward the frame out port Fa0/6 only
C. It will forward the frame out port Fa0/3 only
D. It will flood the frame out all ports
E. It will flood the frame out all ports except Fa0/3
عرض الإجابة
اجابة صحيحة: BD
السؤال #13
The exhibit is showing the topology and the MAC address table. 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.
عرض الإجابة
اجابة صحيحة: D
السؤال #14
If the hubs in the graphic were replaced by switches, what would be virtually eliminated?
A. broadcast domains
B. repeater domains
C. Ethernet collisions
D. signal amplification
E. Ethernet broadcasts
عرض الإجابة
اجابة صحيحة: C
السؤال #15
How does a switch differ from a hub?
A. A switch does not induce any latency into the frame transfer time
B. A switch tracks MAC addresses of directly-connected devices
C. A switch operates at a lower, more efficient layer of the OSI model
D. A switch decreases the number of broadcast domains
E. A switch decreases the number of collision domains
عرض الإجابة
اجابة صحيحة: CD
السؤال #16
If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?
A. 10
B. 10
C. A1:A1:A1:A1:A1:A1
D. B2:B2:B2:B2:B2:B2
E. C3:C3:C3:C3:C3:C3
F. D4:D4:D4:D4:D4:D4
عرض الإجابة
اجابة صحيحة: E
السؤال #17
A network device needs to be installed in the place of the icon labeled Network Device to accommodate a leased line attachment to the Internet. Which network device and interface configuration meets the minimum requirements for this installation?
A. a router with two Ethernet interfaces
B. a switch with two Ethernet interfaces
C. a router with one Ethernet and one serial interface
D. a switch with one Ethernet and one serial interface
E. a router with one Ethernet and one modem interface
عرض الإجابة
اجابة صحيحة: BDF
السؤال #18
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
عرض الإجابة
اجابة صحيحة: A
السؤال #19
On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?
A. RTP
B. TCP
C. CDP
D. UDP
عرض الإجابة
اجابة صحيحة: BE
السؤال #20
HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
A. abcd
B. 192
C. aabb
D. 192
E. abcd
عرض الإجابة
اجابة صحيحة: E
السؤال #21
What are two common TCP applications? (Choose two.)
A. TFTP
B. SMTP
C. SNMP
D. FTP
E. DNS
عرض الإجابة
اجابة صحيحة: E
السؤال #22
Which OSI layer header contains the address of a destination host that is on another network?
A. application
B. session
C. transport
D. network
E. data link
F. physical
عرض الإجابة
اجابة صحيحة: D
السؤال #23
Which layer of the TCP/IP stack combines the OSI model physical and data link layers?
A. Internet layer
B. transport layer
C. application layer
D. network access layer
عرض الإجابة
اجابة صحيحة: D
السؤال #24
A workstation has just resolved a browser URL to the IP address of a server. What protocol will the workstation now use to determine the destination MAC address to be placed into frames directed toward the server?
A. HTTP
B. DNS
C. DHCP
D. RARP
E. ARP
عرض الإجابة
اجابة صحيحة: D
السؤال #25
SwitchA receives the frame with the addressing shown. According to the command output also shown in the exhibit, how will SwitchA handle this frame?
A. It will drop the frame
B. It will forward the frame out port Fa0/3 only
C. It will flood the frame out all ports
D. It will flood the frame out all ports except Fa0/3
عرض الإجابة
اجابة صحيحة: E

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