A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

• • DNS

• • POP3

• • DHCP

• • SMTP

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

• • client-based

• • master-slave

• • peer-to-peer (P2P)

• • point-to-point

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

• • Audio conference, financial transactions, web page

• • financial transactions, audio conference, web page

• • financial transactions, web page, audio conference

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

• • application, session, transport, network, data link, and physical layers

• • application, transport, Internet, and network access layers

• • only application, Internet, and network access layers

• • only Internet and network access layers

A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

• RFI

• • EMI

• • crosstalk

• • signal attenuation

A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?

• • It will send an ARP request for the MAC address of the default gateway.

• • It will send the frame and use its own MAC address as the destination.

• • It will send an ARP request for the MAC address of the destination device.

• • It will send the frame with a broadcast MAC address.

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

• • POP3

• • DNS

• • IMAP

• • NetBIOS (NetBT)

A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?

• • 255.255.255.224

• • 255.255.255.128

• • 255.255.255.192

• • 255.255.255.240

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

• • The data flow is being tracked based on the destination IP address that is used by the PC of the technician.

• • The data flow is being tracked based on the source IP address that is used by the PC of the technician.

• • The data flow is being tracked based on the destination MAC address of the technician PC.

• • The data flow is being tracked based on the source port number that is used by each application.

A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?

• • 255.255.255.192

• • 255.255.255.240

• • 255.255.255.224

• • 255.255.255.128