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| Q.1) | Which term is used to describe the process of placing one message format into another format so that the message can be delivered across the appropriate medium? | |
| A. | flow control | |
| B. | encapsulation (Correct Answer) | |
| C. | encoding | |
| D. | multicasting | |
| E. | access method | |
Refer to the graphic. Five PCs are connected through a hub. If host H1 wants to reply to a message from host H2, which statement is true?| Q.3) | Which two statements concerning networking standards are true? (Choose two.) | |
| A. | adds complexity to networks | |
| B. | encourages vendors to create proprietary protocols | |
| C. | provides consistent interconnections across networks (Correct Answer) | |
| D. | ensures that communications work best in a single-vendor environment | |
| E. | simplifies new product development (Correct Answer) | |
| Q.4) | What does the 100 mean when referencing the 100BASE-T Ethernet standard? | |
| A. | type of cable used | |
| B. | type of data transmission | |
| C. | speed of transmission (Correct Answer) | |
| D. | type of connector required | |
| E. | maximum length of cable allowed | |
| Q.5) | Which address does an NIC use when deciding whether to accept a frame? | |
| A. | source IP address | |
| B. | source MAC address | |
| C. | destination IP address | |
| D. | destination MAC address (Correct Answer) | |
| E. | source Ethernet address | |
| Q.6) | Which type of address is used in an Ethernet frame header? | |
| A. | logical addresses only | |
| B. | IP addresses only | |
| C. | MAC addresses only (Correct Answer) | |
| D. | broadcast addresses only | |
| Q.7) | What is the function of the FCS field in an Ethernet frame? | |
| A. | detects transmission errors (Correct Answer) | |
| B. | provides timing for transmission | |
| C. | contains the start of frame delimiter | |
| D. | indicates which protocol will receive the frame | |
| Q.8) | What is the purpose of logical addresses in an IP network? | |
| A. | They identify a specific NIC on a host device. | |
| B. | They are used to determine which host device accepts the frame. | |
| C. | They provide vendor-specific information about the host. | |
| D. | They are used to determine the network that the host is located on. (Correct Answer) | |
| E. | They are used by switches to make forwarding decisions. | |
| Q.9) | Which device accepts a message on one port and always forwards the message to all other ports? | |
| A. | modem | |
| B. | switch | |
| C. | router | |
| D. | hub (Correct Answer) | |
| Q.10) | Which two networking devices are used to connect hosts to the access layer? (Choose two.) | |
| A. | router | |
| B. | hub (Correct Answer) | |
| C. | switch (Correct Answer) | |
| D. | server | |
| E. | computer | |
| Q.11) | Host A needs to learn the MAC address of Host B, which is on the same LAN segment. A message has been sent to all the hosts on the segment asking for the MAC address of Host B. Host B responds with its MAC address and all other hosts disregard the request. What protocol was used in this scenario? | |
| A. | ARP (Correct Answer) | |
| B. | DHCP | |
| C. | DNS | |
| D. | WINS | |
| Q.12) | A switch receives a frame with a destination MAC address that is currently not in the MAC table. What action does the switch perform? | |
| A. | It drops the frame. | |
| B. | It sends out an ARP request looking for the MAC address. | |
| C. | It floods the frame out of all active ports, except the origination port. (Correct Answer) | |
| D. | It returns the frame to the sender. | |
| Q.13) | What is a benefit of having a router within the distribution layer? | |
| A. | prevents collisions on a local network | |
| B. | keeps broadcasts contained within a local network (Correct Answer) | |
| C. | controls which hosts have access to the network | |
| D. | controls host-to-host traffic within a single local network | |
| Q.14) |  Refer to the graphic. What does the router do after it determines that a data packet from Network 1 should be forwarded to Network 2? | |
| A. | It sends the data packet as it was received. | |
| B. | It reassembles the frame with different MAC addresses than the original frame.(Correct Answer) | |
| C. | t reassembles the data packet with different IP addresses than the original data packet. | |
| D. | It reassembles both the packet and the frame with different destination IP and MAC addresses. | |
| Q.15) | Which table does a router use to make decisions on where a data packet is to be sent? | |
| A. | ARP table | |
| B. | routing table (Correct Answer) | |
| C. | network table | |
| D. | forwarding table | |
| Q.16) | If the default gateway is configured incorrectly on the host, what is the impact on communications? | |
| A. | The host is unable to communicate on the local network. | |
| B. | The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. (Correct Answer) | |
| C. | The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network | |
| D. | There is no impact on communications. | |
| Q.17) | What device is typically used as the default gateway for a computer? | |
| A. | a server hosted by the ISP | |
| B. | the router interface closest to the computer (Correct Answer) | |
| C. | a server managed by a central IT department | |
| D. | the switch interface that connects to the computer | |
| Q.18) | If a router receives a packet that it does not know how to forward, what type of route must be configured on the router to prevent the router from dropping it? | |
| A. | dynamic route | |
| B. | default route (Correct Answer) | |
| C. | destination route | |
| D. | default destination | |
| Q.19) | Which two items are included in a network logical map? (Choose two.) | |
| A. | naming scheme (Correct Answer) | |
| B. | IP addressing scheme (Correct Answer) | |
| C. | length of cable runs | |
| D. | physical location of networking devices | |
| E. | specific layout of interconnections between networking devices and hosts | |
| Q.20) | An integrated router can normally perform the functions of which two other network devices? (Choose two.) | |
| A. | NIC | |
| B. | switch (Correct Answer) | |
| C. | e-mail server | |
| D. | application server | |
| E. | wireless access point (Correct Answer) | |
| Q.21) | What is a reason for disabling simple file sharing? | |
| A. | It enables the user to map a remote resource with a local drive. | |
| B. | It enables the user to share all files with all users and groups. | |
| C. | It enables the user to share printers. | |
| D. | It enables the user to set more specific security access levels. (Correct Answer) | |
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