1.
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 (e.g., two routers or two switches) directly together. This type of connection is possible at Fast Ethernet speeds. Additionally, the cable can also be used to connect a PC to a router's console port, allowing for configuration and management of the router. Therefore, the two connection types that can successfully be made with this cable are connecting two routers together via their fast ethernet ports and connecting two devices with the same interface type at Fast Ethernet speeds.
2.
2. 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 through a console cable connected to a computer or terminal. It provides a command-line interface where users can configure the router, set up passwords, and perform initial setup tasks. The console interface is typically used during the initial setup process before other interfaces, such as Ethernet or serial interfaces, are configured.
3.
3. 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
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 the quality of signals transmitted over copper cables. This makes fiber more reliable and less prone to signal degradation.
4.
4. A network administrator is required to use media in the network that can run 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 these requirements. UTP is a type of media that can run up to 100 meters in cable length without using repeaters. It is also inexpensive and easily installed. Additionally, UTP cables are commonly used in pre-existing buildings with limited cabling space due to their small size and flexibility.
5.
5. What does the term "attenuation" mean in data communication?
Correct Answer
A. Loss of signal strength as distance increases
Explanation
Attenuation refers to the gradual decrease in signal strength as it travels over a distance in data communication. This can occur due to various factors such as resistance, interference, and impedance mismatch. As the signal travels farther, it experiences more resistance and interference, causing its strength to diminish. Therefore, the correct answer is "loss of signal strength as distance increases."
6.
6. 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
When using the subnet mask 255.255.248.0, it means that 13 bits are used for the network portion and 11 bits are used for the host portion. The formula to calculate the number of host addresses is 2^n - 2, where n is the number of bits in the host portion. So in this case, 2^11 - 2 equals 2046. Therefore, there may be 2046 host addresses assigned on each subnetwork when using the given network address and subnet mask.
7.
8. 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 maximum of 30 hosts per subnet, which is more than enough for the required 27 hosts. It also leaves only 2 unused addresses in each subnet, minimizing wastage of IP addresses.
8.
11. 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
PC1 will place the destination IP address 192.168.3.54 in the header for a packet destined for PC2.
9.
12. 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 a subnet mask of 255.255.255.0. The subnet masks indicate that Host A and Host B are on different network segments, as the subnet masks define the network portion of the IP address. Therefore, Host A and Host B would not be able to communicate directly with each other outside of their respective network segments. Host B would be successful in communicating within its own network segment, but Host A would fail in communicating outside of its network segment.
10.
13. 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 correct answer is DB 60, Winchester 15 pin, and smart serial. These three types of connectors are commonly associated with Cisco's V.35 serial cables. RJ 11 and DB 9 are not commonly associated with V.35 serial cables.
11.
14. Refer to the exhibit. How many subnets are required to support the network that is shown?
Correct Answer
B. 3
Explanation
Based on the given exhibit, there are three distinct subnets visible. Each subnet has a different network address range, which suggests that the network needs to support three separate subnets. Therefore, the correct answer is 3.
12.
15. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)
Correct Answer(s)
A. Direct configuration of the device
D. The enabling of the mechanism to electrically swap the transmit and receive pairs
E. The automatic detection and negotiating of MDI/MDIX operation of the port
Explanation
The three common methods for setting a UTP Ethernet port to MDI or MDIX operation are direct configuration of the device, 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 and cable selection and configuration are not mentioned as methods for setting the port to MDI or MDIX operation.
13.
16. Which three statements are true about the role of routers in the network? (Choose three.)
Correct Answer(s)
C. They segment broadcast domains.
D. They interconnect different network technologies.
E. Each router interface requires a separate network or subnet.
Explanation
Routers play a crucial role in network communication. Firstly, they segment broadcast domains, which means they divide a network into smaller parts, reducing the impact of broadcast traffic on the entire network. Secondly, routers interconnect different network technologies, allowing communication between networks that use different protocols or technologies. Finally, each interface on a router requires a separate network or subnet, as routers need to have unique IP addresses on each network they connect to.
14.
17. 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 is the correct answer because it is a network device that broadcasts all incoming traffic to all connected devices. By connecting the monitoring station to the network using a hub, all packets from the student subnet can be captured and evaluated.
15.
18. 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 exhibit shows a simple network topology with multiple devices connected to a single switch. Since all devices are using default settings, they will be in the same subnet. Therefore, only one subnet is required to address this topology.
16.
19. 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 exhibit shows a topology with multiple devices connected. From the information given, we can determine that there are five broadcast domains present because each switch creates a separate broadcast domain. Host B is using a crossover cable to connect to the router, as indicated by the arrow connecting them. Additionally, there are five networks shown, as each switch represents a different network segment.
17.
21. 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.
D. Segment 3 uses horizontal cabling.
E. Segment 4 uses vertical cabling.