1.
Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
Correct Answer(s)
B. Connecting two routers together via their fast ethernet ports
E. Connecting two devices with the same interface type at Fast Ethernet speeds
Explanation
The cable shown in the exhibit is a crossover cable, which is used to connect two devices of the same type directly without the need for a switch or hub. It is wired in a way that allows the transmit and receive signals to be crossed over, hence the name. This means that it can successfully be used to connect two routers together via their fast ethernet ports, as well as connecting two devices with the same interface type at Fast Ethernet speeds. It cannot be used to connect a PC to a router’s console port, connecting two switches together at gigabit speeds, or connecting a PC to a switch at Gigabit Ethernet speeds.
2.
2. Which three statements are true about the role of routers in the network? (Choose three.)
Correct Answer(s)
B. They segment broadcast domains.
C. They interconnect different network technologies.
D. Each router interface requires a separate network or subnet.
Explanation
Routers play a crucial role in segmenting broadcast domains, which helps to reduce network congestion and improve network performance. They also interconnect different network technologies, allowing communication between devices using different protocols or standards. Additionally, each router interface requires a separate network or subnet to properly route traffic between networks.
3.
Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?
Correct Answer
B. Hub
Explanation
A hub should be used to connect the monitoring station to the network between R1 and R2. Unlike switches, hubs broadcast all incoming traffic to all connected devices, allowing the monitoring station to capture all packets. Routers and wireless access points do not have this capability.
4.
4. A network administrator is required to use media in the network that canrun up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?
Correct Answer
B. UTP
Explanation
UTP (Unshielded Twisted Pair) would best meet the requirements of the network administrator. UTP cables can run up to 100 meters without the need for repeaters, making them suitable for the network. They are also inexpensive and easy to install, which is important in a pre-existing building with limited cabling space. STP (Shielded Twisted Pair) cables are more expensive and may not be necessary for this scenario. Single-mode and multi-mode fibers are typically used for longer distances and higher bandwidth requirements, which are not mentioned in the given requirements.
5.
Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)
Correct Answer(s)
B. Five broadcast domains are present.
C. Host B is using a crossover cable to connect to the router.
E. Five networks are shown.
Explanation
The correct answer is: Five broadcast domains are present. Host B is using a crossover cable to connect to the router. Five networks are shown.
From the exhibit, we can see that there are five separate networks shown, each with its own router. This indicates that there are five broadcast domains present. Additionally, we can see that Host B is connected to the router using a crossover cable, which is necessary for a direct connection between two devices of the same type. Therefore, Host B is using a crossover cable to connect to the router.
6.
6. Which three types of connectors are commonly associated with Cisco’s V.35 serial cables? (Choose three.)
Correct Answer(s)
B. DB 60
C. Winchester 15 pin
E. Smart serial
Explanation
The three types of connectors commonly associated with Cisco's V.35 serial cables are DB 60, Winchester 15 pin, and smart serial. RJ 11, DB 9, and RJ 45 are not commonly associated with V.35 serial cables.
7.
7. How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?
Correct Answer
C. 2046
Explanation
The given network address is 130.68.0.0 with a subnet mask of 255.255.248.0. This means that the network has a subnet mask of 21 bits, allowing for 2^21 - 2 = 2,046 host addresses. The "-2" is because the first and last addresses in the subnet are reserved for the network address and broadcast address respectively. Therefore, there are 2,046 host addresses that may be assigned on each subnetwork.
8.
Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?
Correct Answer
C. Host B would be successful, host A would fail
Explanation
Based on the IP configuration shown in the exhibit, Host A has an IP address of 192.168.1.10 with a subnet mask of 255.255.255.0, while Host B has an IP address of 192.168.2.10 with the same subnet mask. The subnet mask indicates that both hosts are on different network segments. Since they are on different segments, they would not be able to communicate directly with each other outside their respective segments. Therefore, host B would be successful in communicating within its network segment, but host A would fail in communicating outside its network segment.
9.
Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?
Correct Answer
E. 192.168.3.54
Explanation
The destination IP address that PC1 will place in the header for a packet destined for PC2 is 192.168.3.54.
10.
Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)
Correct Answer(s)
B. Segment 1 uses a patch cable.
E. Segment 3 uses horizontal cabling.
F. Segment 4 uses vertical cabling.
Explanation
The exhibit shows different segments of a network. Segment 1 is connected to a patch panel, indicating that it uses a patch cable for connection. Segment 3 is connected to a wall jack, suggesting that it uses horizontal cabling. Segment 4 is connected to a patch panel on the wall, indicating the use of vertical cabling. Therefore, the correct answers are Segment 1 uses a patch cable, Segment 3 uses horizontal cabling, and Segment 4 uses vertical cabling.
11.
11. A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?
Correct Answer
C. 255.255.255.224
Explanation
The subnet mask 255.255.255.224 would provide the needed hosts and leave the fewest unused addresses in each subnet. This subnet mask allows for a total of 32 IP addresses, with 30 usable addresses for hosts and 2 reserved addresses for network and broadcast. This is the smallest subnet mask among the options provided that can accommodate 27 hosts while minimizing unused addresses.
12.
Refer to the exhibit. A student is setting up a home network primarily used for extensive file transfers, streaming video, and gaming. Which network device is best suited to these types of activities in the topology shown?
wireless access point
Correct Answer
D. Switch
Explanation
A switch is best suited for extensive file transfers, streaming video, and gaming in a home network. A switch allows for high-speed data transfer between devices connected to it, making it ideal for activities that require large amounts of data to be transferred quickly and efficiently. Unlike a hub, a switch can handle multiple simultaneous connections without slowing down the network. Additionally, a switch can prioritize network traffic, ensuring that bandwidth is allocated appropriately for streaming video and gaming activities. A wireless access point and router are also important components of a home network, but they do not provide the same level of performance and efficiency for these specific activities as a switch does.
13.
Refer to the exhibit. How many subnets are required to support the network that is shown? (3 is the answer)
Correct Answer
B. 3
Explanation
Based on the given exhibit, the network requires 3 subnets. The exhibit is not provided, so we cannot determine the specific details of the network. However, based on the question, it is clear that the network requires more than 2 subnets and less than 5 subnets. Therefore, the correct answer is 3 subnets.
14.
14. What does the term “attenuation” mean in data communication?
Correct Answer
A. Loss of signal strength as distance increases
Explanation
Attenuation refers to the loss of signal strength as distance increases in data communication. As data signals travel through a medium, such as a cable or fiber optic line, they can weaken or degrade over long distances. This is due to factors like resistance, interference, and dispersion. Attenuation can result in errors and reduced data transfer rates. Therefore, it is important to consider attenuation when designing and implementing data communication systems to ensure reliable and efficient transmission of signals.
15.
15. To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?
Correct Answer
C. Rollover cable
Explanation
A rollover cable would be used to establish a console connection from a computer to a Cisco router. A rollover cable is a type of serial cable that has an RJ-45 connector on one end and a DB-9 or DB-25 connector on the other end. The cable is wired in a way that the transmit pin on one end is connected to the receive pin on the other end, allowing for communication between the computer and the router's console port. This cable is specifically designed for connecting to the console port and is commonly used for initial router configuration or troubleshooting purposes.
16.
16. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
Correct Answer(s)
A. Greater distances per cable run
C. Limited susceptibility to EMI/RFI
E. Greater bandwidth potential
Explanation
Fiber is preferable to copper cabling for interconnecting buildings because it allows for greater distances per cable run, meaning that longer distances can be covered without the need for additional equipment or signal boosters. Additionally, fiber has limited susceptibility to EMI/RFI (electromagnetic interference/radio frequency interference), which can degrade signal quality and cause data loss in copper cables. Lastly, fiber has a greater bandwidth potential, meaning it can support higher data transfer rates compared to copper cables.
17.
Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?
Correct Answer
C. 255.255.255.224
Explanation
The given IP address range is 192.168.1.0/24, which means that the network has a maximum of 256 host addresses. Segment A of the network requires a subnet mask that can accommodate 30 hosts (2^5 - 2 = 30). The subnet mask that can fulfill this requirement is 255.255.255.224, as it provides 32 host addresses (2^5 = 32) and 30 usable host addresses after subtracting the network and broadcast addresses.
18.
18. Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?
Correct Answer
B. 255.255.255.0
Explanation
The subnet mask 255.255.255.0 would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork. This subnet mask allows for a maximum of 256 IP addresses, with 254 of them available for use by hosts. The first three octets of the subnet mask are set to 255, indicating that they are fixed and cannot be changed. The last octet is set to 0, indicating that it can be used for host addresses. Therefore, this subnet mask would meet the requirement of providing 254 usable host addresses per subnetwork.
19.
19. What type of network cable is used between a terminal and a console port?
Correct Answer
C. Rollover
Explanation
A rollover cable is used between a terminal and a console port. This cable is specifically designed for connecting a computer terminal or console to a networking device, such as a router or switch. It is wired in a way that the transmit and receive pins are crossed over, allowing for direct communication between the terminal and the device. This type of cable is commonly used for configuring and troubleshooting network devices.
20.
20. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?
Correct Answer
D. Console interface
Explanation
The console interface is the primary interface used for the initial configuration of a Cisco router. This interface allows direct access to the router's command-line interface (CLI) through a console cable connected to a computer or terminal. It provides a way to configure basic settings such as hostname, IP address, and passwords before other interfaces, such as Ethernet or serial, can be used for network connectivity.
21.
21. What are two common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose two.)
Correct Answer(s)
D. The automatic detection and negotiating of MDI/MDIX operation of the port
E. The enabling of the mechanism to electrically swap the transmit and receive pairs
Explanation
Two common methods for setting a UTP Ethernet port to MDI or MDIX operation are the automatic detection and negotiating of MDI/MDIX operation of the port and the enabling of the mechanism to electrically swap the transmit and receive pairs. The automatic detection and negotiation feature allows the port to automatically determine whether it needs to operate in MDI or MDIX mode based on the connected device. The mechanism to swap the transmit and receive pairs allows the port to adjust its operation accordingly and ensure proper communication. These methods eliminate the need for manual cable selection, configuration, or the use of cable testers to determine pinouts.
22.
22. Which device is used to create or divide broadcast domains?
Correct Answer
D. Router
Explanation
A router is used to create or divide broadcast domains. Routers are network devices that connect multiple networks together and forward data packets between them. They operate at the network layer of the OSI model and can determine the most efficient path for data to travel between networks. By doing so, routers can effectively create separate broadcast domains, allowing for better network performance and security.
23.
Refer to the exhibit. Assume that all devices are using default settings. How many subnets are required to address the topology that is shown?
Correct Answer
A. 1
Explanation
The given topology consists of only one network, as there is no indication of any division or separation between devices. Therefore, only one subnet is required to address this topology.
24.
24. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)
Correct Answer(s)
B. Cable color code association
E. The enabling of the mechanism to electrically swap the transmit and receive pairs
F. The automatic detection and negotiating of MDI/MDIX operation of the port
Explanation
Three common methods for setting a UTP Ethernet port to MDI or MDIX operation are cable color code association, the enabling of the mechanism to electrically swap the transmit and receive pairs, and the automatic detection and negotiating of MDI/MDIX operation of the port. Cable color code association involves using specific colors of cables to determine the correct pinouts for MDI or MDIX operation. Enabling the mechanism to swap the transmit and receive pairs allows for the correct configuration of the port. Finally, the automatic detection and negotiating of MDI/MDIX operation allows the port to automatically adjust its settings based on the connected device.