Network Devices Flashcards
Multimode Fiber cables have a […] fiberglass core than single-mode fiber cables.
Wider
10GBASE-LR maximum cable length:
10 kilometers
How many pairs of wires are used in a 100BASE-T cable?
2 (=4 wires)
What is the speed of a ‘10 Gig Ethernet’ connection?
10 GBps
In a Fast Ethernet connection, a firewall transmits data on which pins […]
1 and 2
In a Fast Ethernet connection, a router receives data on which pins […]
3 and 6
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two switches together?
crossover cable
What are the two main kinds of fiber-optic cable?
Single-mode and multimode
Network speeds are measured in […] per second.
bits
What is the speed of an ‘Ethernet’ connection?
10 Mbps
In a FastEthernet connection, a PC receives data on which pins […]
3 and 6
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect a PC and a switch?
straight-through cable
IEEE standard […] = 1 Gbps Ethernet (1000BASE-T)
802.3ab
10GBASE-ER maximum cable length:
30 kilometers
How many pairs of wires are used in a 10GBASE-T cable?
4 (=8 wires)
What is the speed of a ‘Gigabit Ethernet’ connection?
1 GBps
Ethernet was originally defined in the IEEE […] standard in 1983.
802.3
Which four pin pairs are used in a 1000BASE-T or 10GBASE-T connection?
Pair 1-2, Pair 3-6, Pair 4-5, pair 7-8
Which is cheaper, single-mode or multimode fiber?
multimode
How many bits are in 1 byte?
8
IEEE standard […] = 10 Mbps Ethernet (10BASE-T)
802.3i
In a FastEthernet connection, a firewall receives data on which pins […]
3 and 6
10GBASE-SR maximum cable length:
400 meters
[…] cables are vulnerable to EMI (electromagnetic interference).
UTP
10GBASE-SR, 10GBASE-LR, and 10GBASE-ER were defined in the IEEE […] standard.
802.3ae
10GBASE-LR maximum cable length:
10 kilometers
A […] connection allows both devices to send and receive data at the same time.
full-duplex
What is the speed of a ‘FastEthernet’ connection?
100 Mbps
1000BASE-LX maximum cable length:
550 meters (multimode)
5 kilometers (single-mode)
[…] cables emit a faint signal outside of the cable, which can be detected and copied.
UTP
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two switches together?
crossover cable
What is the name of the connector on the end of an Ethernet UTP cable?
RJ45
How many bits are in 1 megabit?
1,000,000 (1 million)
What is the maximum length of an Ethernet UTP cable?
100 meters
IEEE standard […] = 100 Mbps Ethernet (100BASE-T)
802.3u
Which two pin pairs are used in a 10BASE-T or 100BASE-T connection?
Pair 1-2, Pair3-6
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two routers together?
crossover cable
What is the name of the feature that allows a device to automatically adjust which RJ45 pin pairs it uses to transmit and receive data?
Auto MDI-X
IEEE standard […] = 10 Gbps Ethernet (10GBASE-T)
802.3an
What kind of cable connects a pin pair on one end of a UTP cable to the opposite pair on the other end?
crossover cable
How many bits are in 1 kilobit?
1,000 (one thousand)
How many bits are in 1 gigabit?
1,000,000,000 (1 billion)
Which allows longer cables, single-mode or multimode fiber?
single-mode
10GBASE-SR maximum cable length:
400 meters