cat 3 datacable
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datacableTRANSCRIPT
1. Cat 5 was not the first category-rated UTP cable. That honor goes to _________.
A. Cat 1
B. Cat 2
C. Cat 3
D. Cat 4
2. Premises cabling standards, commonly called TIA-568, were written to ensure _________.
A. Cabling performance
B. Component interoperability
C. Operation with standardized communications systems
D. All of the above
3. The TIA standards for category-rated UTP cable (TIA-568) were derived from _________.
A. AT&T studies in the early 1980s
B. The Anixter Levels cable-rating system
C. IBM cabling systems
D. DECnet standards
4. Cat 3 UTP was created for use with _________.
A. POTS (plain old telephone service)
B. ARCNET
C. 10BASE-T (10 Mbps Ethernet)
D. 100BASE-T (100 Mbps Ethernet)
1. Why are punchdown blocks used with Cat 3 and Cat 5/5E/6 cabling?
Terminate cables from equipment
Interconnect cables in a telecom closet
Change from T568A to T568B terminations
Meet EIA/TIA 568 Standards
3. Which punchdown block is more often used with telephones (Cat 3)?
Bix block
Krone block
110 block
66 block
12. Why do Cat 5/5E/6 and Cat 3 jacks have different wiring color codes? (hint: 2 answers are correct)
Cat 3 jacks are used for other types of terminations, like USOC
Cat 5 jacks have internal twists to prevent crosstalk
Manufacturers use different termination processes for Cat 3 and Cat 5 jacks
Cat 3 and Cat 5 cables have different color codes for the pairs
15. Wires are punched down on a 66 block in color code order:
Depends on whether its T568A, T568B or USOC
Just like a 110 block, BLOG
Doesn't matter what order
Same as a Cat 3 jack
16. The Cat 3 jack is the same as a Cat 5/5E/6 jack except :
There are no internal twists to change the color coding
The color codes use different colors
It only connects to RJ-45 plugs
It snaps into outlets upside down
18. Patchcords have a major difference from the installed Cat 3 or Cat 5/5E/6 link. What is it?
The connectors have molded strain relief
Patchcord cables are colored for identification
The connectors are clear plastic so you can see the color coding
They are made of stranded wire for flexibility
20. If you mix Cat 3 and Cat 5/5E/6 hardware in a cabling system:
You will only get Cat 3 performance
Pairs will be reversed because of color code differences
Depends on the manufacturer of the hardware
You can't mix them since the hardware is incompatible
5. TIA standardized one cable type for 16 mbps Ethernet, but it became obsolete in a few months by a higher performance cable. What was it?
A. Category 3
B. Category 4
C. Category 5
D. Category 5a
9. FCC no longer allows two-pair POTS wiring in homes, requiring as a minimum a cable rated _________.
A. Category 3
B. Category 5
C. Category 5e
D. Category 6
1 Which of the following are 100BaseT cable types?
A) CAT 3
B) CAT 5
C) CAT 5e
D) All of the above
2 What is the physical limit for the number of ports on an Ethernet hub?
A) 24
B) 256
C) 512
D) 1024
3 When a network device can only send data or receive data, but not both at the same time, it is operating in what mode?
A) Duplex
B) Full-duplex
C) Half-duplex
D) Halfplex
4 What important backbone technology is also known as Gigabit Ethernet?
A) 100BaseT
B) 100BaseFL
C) 100BaseFX
D) 1000BaseT
5 What are the two major UTP variations of Fast Ethernet?
A) 100BaseTL
B) 100BaseTX
C) 100BaseFL
D) 100BaseT4
6 What are three limitations of Fast Ethernet over UTP?
A) Distance is restricted to 100 meters from node to hub.
B) Shielding may be inadequate for some installations.
C) Intrusion from outsiders may be possible without detection.
D) All of the above
7 Which standard defines Fast Ethernet using fiber cabling?
A) 10BaseFL
B) 100BaseFX
C) 100BaseT4
D) 100BaseTX
8 Which of the following are fiber connector types?
A) LC
C) MT-RJ
D) ST
E) All of the above
9 What do you need to connect varying 10 GbE cable types to the same router?
A) SFF connectors on all cables
B) SC connectors on all cables
C) Multisource agreements on the router
D) This is not possible.
10 Which standard defines Gigabit Ethernet over twisted-pair copper wire?
A) 802.3ab
B) 802.3e
C) 802.3GbUTP
D) 802.3z
11 You’ve lost the manual to your router. How can you tell the difference between a 1000BaseT port and a 100BaseT port on a router just by looking?
A) The 1000BaseT ports are noticeably larger.
B) The 100BaseT ports are green, whereas the 1000BaseT ports are gray.
C) 1000BaseT ports are reversed with the clip on the top.
D) You can’t tell the difference by looking. They look exactly the same.
12 Which statement about Ethernet is correct?
A) Only 10- and 100-megabit Ethernet may use a hub. Gigabit Ethernet must use a switch.
B) 10- and 100-megabit Ethernet has a limit of 1024 nodes. Gigabit Ethernet has no limit.
C) Gigabit Ethernet that uses UTP cabling has a maximum distance between the node and switch of 250–400 meters, depending on the manufacturer.
D) All versions of 10 Gigabit Ethernet use the same cabling.
13 What will happen if you connect a 10BaseT NIC to an auto-sensing switch?
A) The switch will operate in hub mode.
B) The entire switch will operate at 10 megabits, even if 100-megabit devices are attached.
C) The 10BaseT NIC will operate at 10 megabits while connected 100-megabit devices will operate at their full speed of 100 megabits.
D) The 10BaseT NIC will overclock to run at 100 megabits.
14 What benefit does full-duplex offer?
A) It allows all NICs on a hub to send signals at the same time without collisions.
B) It doubles the bandwidth of the network.
C) It doubles the speed of the network.
D) It doubles both the bandwidth and the speed of the network.
15 What is the difference between the R and W designations in 10GBase standards, such as 10GBaseLR and 10GBaseLW, or 10GBaseER and 10GBaseEW?
A) The R indicates “regular," or half-duplex. The W indicates “wide mode," which is the 10 Gigabit Ethernet version of full-duplex.
B) The R indicates “read," or the ability to receive signals; the W indicates “write," or the ability to send signals.
C) The R and W indicate differences in the circuitry, with the W versions used to connect to SONET equipment.
D) The R indicates the use of UTP, whereas the W indicates the use of fiber optics.
1) Which cable type is used for thick Ethernet network segments?
A. RG-8 (Correct Answer)
B. RG-58
C. RJ-45
D. RJ-11
You have been hired by a corporation to design its network. The corporation just moved in to one floor of an older building. The building has existing Category 3 (CAT3) cable. The previous occupants had a 10-megabit-per-second (Mbps) local area network (LAN). Your client does not have the money to upgrade the cable at this time but wants to use a data rate of 100 Mbps for the LAN. All computers currently
have network interface cards that support data rates of 10 Mbps and 100 Mbps. Which of the following solutions should you suggest to best meet the needs of your client?
A. Advise the client that they can achieve the 100-Mbps data rate desired by keeping the existing CAT3 cabling, because it supports the 100Base-T4 Fast Ethernet standard. (Correct Answer)
B. Advise the client that their network can’t support the 100-Mbps data rate desired using the existing CAT3 cabling and have the client replace their entire cable infrastructure with CAT2.
C. Advise the client that they can achieve the 100-Mbps data rate desired by keeping the existing CAT3 cabling, because it supports the 100Base-TX Fast Ethernet standard.
D. Advise the client that they can achieve the 100-Mbps data rate desired by keeping the existing CAT3 cabling, because it supports the 100Base-FX Fast Ethernet standard.
Q.3) What purpose do the twists serve in twisted-pair cabling?
A. They prevent collisions.
B. They completely eliminate crosstalk from adjacent pairs and electromagnetic interference (EMI).
C. They prevent crosstalk from adjacent pairs and limit the effects that EMI has on the signal being carried over the cable. (Correct Answer)
D. They extend the bend radius allowance of the cable.
Which of the following cable connector types is not used with fiber-optic cable?
A. Straight tip (ST)
B. Subscriber Connector (SC)
C. Mechanical Transfer–Registered Jack (MT-RJ)
D. F-type (Correct Answer)
E. Fiber Local Connector (LC)
What type of tool do you use to add connectors such as RJ-45 and RJ-11 to twisted-pair cabling?
A. A crimper (Correct Answer)
B. A splicer
C. A pigtail
D. A patch
You have been hired by a corporation to design the cabling for their network. The corporation just moved in to two different floors of an older building. The building has existing Category 3 (CAT3) cable. Your client wants two separate local area networks (LANs), one on each floor, with a backbone network connecting them. Your client wants a 100-megabit-per-second (Mbps) data rate for each LAN but plans on migrating to 1,000 Mbps in the future. The two networks are approximately 600 meters apart. Which of the following solutions best meets the needs of this corporation?
A. Install Category 5e (CAT5e) or Category 6 (CAT6) cable for the LANs. These cables run at 100 Mbps and provide a migration path to 1,000 Mbps. Use twisted-pair cable for the backbone network.
B. Use the existing CAT3 wiring for the LANs, because CAT3 runs at 100 Mbps and provides a migration path to 1,000 Mbps. Use thick coaxial cable for the backbone network.
C. Install CAT5e or CAT6 cable for the LANs. These cables run at 100 Mbps and provide a migration path to 1000 Mbps. Use multimode fiber-optic cable for the backbone network. (Correct Answer)
D. Install CAT5e or CAT6 cable for the LANs. These cables support 100 Mbps and provide a migration path to 1,000 Mbps. Use the existing CAT3 cable for the backbone network.
Which type of cable and connector is used to attach a television set to a cable television (CATV) network?
A. A fiber-optic cable and a Straight Tip (ST) connector
B. A coaxial cable and a Bayonet-Neill-Concelman (BNC) connector
C. A twisted-pair cable and an RJ-45 connector
D. A coaxial cable and an F-type connector (Correct Answer)
E. An AUI cable and a vampire tap connector
Which twisted-pair cable category is rated for both a 10-megabit-per-second (Mbps) data rate (using two pairs) and a 100-Mbps data rate (using four pairs)?
A. Category 2 (CAT2)
B. Category 3 (CAT3) (Correct Answer)
C. Category 4 (CAT4)
D. Category 5 (CAT5)
E. Category 5e (CAT5e)
Which cable type is typically configured in a star topology, uses eight copper conductors arranged in four pairs, and uses RJ-45 connectors?
A. RG-8
B. Twisted-pair (Correct Answer)
C. RG-58
D. Fiber-optic
Which of the following is not a limitation on 10BaseT cable?
A) Maximum speed of 10 Mbps
B) Maximum distance between hub and node of 100 feet
C) Maximum of 1024 nodes per hub
D) Minimum CAT 3 or better UTP with RJ-45 connectors
Which of the following is not a limitation on 10BaseFL cable?
A) Maximum speed of 10 Mbps
B) Maximum distance between hub and node of 2000 meters
C) Maximum of 1024 nodes per hub
D) Minimum CAT 3 or better UTP with RJ-45 connectors
How are the connectors wired on a crossover cable?
A) One end is TIA/EIA 568A; the other end is TIA/EIA 568B.
B) Both ends are TIA/EIA 568A.
C) Both ends are TIA/EIA 568B.
D) One end is an RJ-45; the other end is an RG-6.
For Category 5e, Cat 6 and Cat 6a unshielded twisted pair (UTP) cable, meeting TIA-568 and ISO-11801 standards requires _______.
A. Testing
B. Certification
C. Verification
Q.2)
Which subsystem of the ANSI/TIA/EIA–568–B structured cabling can be used for connections between floors?
A. Intra cabling.
B. Backbone cabling. (Correct Answer)
C. Vertical cabling.
D. Horizontal cabling.
Q.15)
Which subsystem of the ANSI/TIA/EIA–568–B structured cabling recognizes multimode cable?
A. Intra cabling.
B. Backbone cabling.
C. Vertical cabling.
D. Horizontal cabling. (Correct Answer)
Which subsystem of the ANSI/TIA/EIA–568–B structured cabling can be used to interconnect buildings?
A. Intra cabling.
B. Backbone cabling. (Correct Answer)
C. Vertical cabling.
D. Horizontal cabling.
Which principle is not addressed in the ANSI/TIA/EIA–568–B standard?
A. Minimum requirements for telecomunications cabling.
B. Life span of a telecommunications cabling system.
C. Connecting hardware performance specifications.
D. Color of the cable. (Correct Answer)
The work area of the ANSI/TIA/EIA–568–B structured cabling system consists of all except which components?
A. Patch cables.
B. Adapters.
C. Patch panels. (Correct Answer)
D. Station equipment.
_______ supports up to 10 Mbit/s Ethernet or 4 Mbit/s Token Ring.
A. Cat3 (Correct Answer)
B. Cat5
C. Cat5e
D. Cat6
E. Cat6a
What is the simplest type of twisted-pair phone cabling that provides a slow, reliable path for
information at up to 64 Kbps?
A) Cat 1
B) Optical fiber
C) Microwave
D) Coax
Which of the following uses a very thin glass or plastic fiber through which pulses of light travel?
A) Cat 1
B) Optical fiber
C) Twisted pair
D) Coax
Which of the following is a wireless communications medium that uses light waves to transmit
signals or information?
A) Cat 3
B) Optical fiber
C) Infrared
D) Microwave
Which of the following is a type of radio transmission?
A) Cat 3
B) Optical fiber
C) Infrared
D) Microwave