CCNA PreTest

Which three statements are true about the operation of a full-duplex Ethernet network?

Which OSI layer header contains the address of a destination host that is on another network?

Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

Which protocol uses a connection-oriented service to deliver files between end systems?

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

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?

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?

Which network device functions only at Layer 1 of the OSI model?

The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?

As packets travel from Mary to Robert, which three devices will use the destination MAC address of the packet to determine a forwarding path? (Choose three.)

Mary is sending an instant message to Robert. The message will be broken into a series of packets that will traverse all network devices. What addresses will populate these packets as they are forwarded from Router1 to Router2?

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?

Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?

Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?

Which statements are true regarding ICMP packets? (Choose two.)

Which statements accurately describe CDP? (Choose three.)

How does a switch differ from a hub?

What must occur before a workstation can exchange HTTP packets with a web server?

How does TCP differ from UDP? (Choose two.)

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?

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?

What are two common TCP applications? (Choose two.)

SwitchA receives the frame with the addressing shown. According to the command output also shown in the exhibit, how will SwitchA handle this