CCNA 1 Module 7 Solutions

Cisco’s exams can be a lot of hard work- we know. But the worst thing you can do to yourself is to simply look up the answers to exam questions. Not only do you not learn anything- but you’re hurting your future in the process. Instead, shouldn’t you get a helpful hint and get pointed in the right direction of where to look for an answer? That way, you can keep your dignity, hopes for the future, and of course your grade.
The questions below are from the CCNA 1 module 7 exam- but instead of straight answers, we reason out why the answers are correct. If any type of math or decision making is involved, we leave that up to you (But we will of course give you the resources you need to complete the question.)

1. Which Ethernet standard does the IEEE 802.3 standard recommend for backbone installations?

A) 10BASE-T
B) 100BASE-T
C) 100BASE-FX
D) 1000BASE-LX

More Info: A Brief Overview of Ethernet History
Explanation: Backbone installations require a lot of bandwidth. Therefore, we need the option that provides the most. 1000BASE-LX would be this option, since it is Gigabit Ethernet; D is the correct answer.

2. Which statements describe Gigabit Ethernet technology? (Choose two.)

A) operates at 100 Mbps
B) typically used for backbone cabling
C) requires shielded twisted-pair cabling
D) can be implemented over copper and fiber
E) primarily used between workstations option

More Info: A Brief Overview of Ethernet History
Explanation: Backbone cabling needs high-bandwidth cable- so B is correct. Gigabit technology can also be copper or fiber optic media- so D is also correct.

3. Which of the following are Fast Ethernet technologies? (Choose two.)

A) 100BASE-5
B) 100BASE2
C) 1000BASE-F
D) 100BASE-FX
E) 100BASE-TX

More Info: A Brief Overview of Ethernet History
Explanation: Fast Ethernet is classified as a 100-Mbit specification. The first two choices, A and B, do not exist. 10BASE5 and 10BASE2 do, however. This leaves us with D and E, since C is Gigabit Ethernet.

4. To make sure timing limitations are not violated when implementing a 10 Mbps Ethernet network involving hubs or repeaters, a technician should adhere to which rule?

A) the 4-5-3 rule
B) the 6-4-2 rule
C) the 3-4-5 rule
D) the 5-4-3 rule

More Info: A Brief Overview of Ethernet History
Explanation: The rule states that networks should not exceed 5 network segments, four repeaters, and no more than three of the five network segments can be for end-users. Thus, the correct answer is D.

5. At which OSI layer do the differences between standard Ethernet, Fast Ethernet and Gigabit Ethernet occur?

A) physical layer

B) data link layer
C) network layer
D) transport layer

More Info: A Brief Overview of Ethernet History
Explanation: Ethernet operates on the physical layer, so A is the only logical choice.

6. How does 1000BASE-T use the UTP wire pairs to accomplish transmission?

A) two pairs are used to transmit and two pairs are used to receive
B) one pair is used to transmit, one pair is used to receive, one pair is used for clocking, and one pair is used for error correction
C) all four pairs are used in parallel by both hosts to transmit and receive simultaneously
D) two pairs of wires are used as in 10BASE-T and 100BASE-TX

More Info: A Brief Overview of Ethernet History
Explanation: 100BASE-T is a Gigabit Ethernet specification, meaning it can provide a large amount of bandwidth. To get as much bandwidth as possible, we need to use all four wired pairs- so C is the correct answer.

7. What RJ-45 pins are unused when transmitting and receiving data in an Ethernet 100BASE-T Category 5 UTP cable? (Choose two.)

A) 1 and 2
B) 3 and 6
C) 4 and 5
D) 7 and 8

More Info: A Brief Overview of Ethernet History
Explanation: Pins 1, 2, 3, and 6 are used in 100BASE-T Cat5 UTP cable, as stated in the article above.

8. What is the maximum distance that 10BASE-T will transmit data before signal attenuation affects the data delivery?

A) 100 meters

B) 185 meters
C) 300 meters
D) 500 meters

More Info: A Brief Overview of Ethernet History
Explanation: The maximum distance a 10BASE-T cable can be run is said to be 100 meters, so A is the correct answer.

9. Which media types can be used in an implementation of a 10BASE-T network? (Choose three.)

A) Category 5 UTP
B) Category 5e UTP
C) Category 3 UTP
D) coaxial cable
E) multi-mode fiber
F) single mode fiber

More Info: A Brief Overview of Ethernet History
Explanation: A, B, and C are true based on the specifications found in the above article.

10. Which of the following Ethernet technologies are considered legacy Ethernet? (Choose three.)

A) 10BASE2
B) 10BASE5
C) 10BASE-T
D) 100BASE-T
E) 100BASE-FX
F) 100BASE-TX

More Info: A Brief Overview of Ethernet History
Explanation: LegacyEthernet is characterized by having speeds of 10-Mbp. Only A, B, and C correspond with this number, and thus, they are correct.