Chapter 3 - Physical Transmission Options
TRUE/FALSE
1. One advantage of LDAP is that it enables information in different directory services to be shared.
ANS: T PTS: 1 REF: 98
2. Wireless technologies are used in situations where it is difficult or too expensive to use cable and in
situations in which flexibility to move network hosts and devices is a requirement.
ANS: T PTS: 1 REF: 100
3. On thick coax cable, if you attach devices more closely than 12.5 meters, the signal can be impaired,
and network errors may result.
ANS: F PTS: 1 REF: 102
4. An advantage of twisted-pair cable compared to thin coax cable is that it is resistant to EMI and RFI.
ANS: F PTS: 1 REF: 105
5. The maximum number of segments in 10BaseT UTP ethernet cable is 500.
ANS: F PTS: 1 REF: 109
6. Fat pipe is another name for STP cable.
ANS: F PTS: 1 REF: 111
7. Ethernet communications at speeds up to 100 Mbps as defined under the IEEE 802.3u standard are
called Fast Ethernet.
ANS: T PTS: 1 REF: 115
8. 10 Gigabit Ethernet operates only at full duplex.
ANS: T PTS: 1 REF: 118
9. Statistical multiple access is a switching method that enables multiple devices to communicate over
the same communications medium by creating time slots in which each device transmits.
ANS: F PTS: 1 REF: 132
MODIFIED TRUE/FALSE
1. The EIA/TIA-568 standard specifies that vertical cabling run between network equipment rooms,
floors, and buildings. _________________________
ANS: F, backbone
PTS: 1 REF: 99
, 2. Interfaces are devices to which the communications media connect. _________________________
ANS: T PTS: 1 REF: 100
3. Resistance is defined as the total amount of opposition to the flow of current and is measured in ohms.
_________________________
ANS: F, Impedance
PTS: 1 REF: 102
4. The maximum speed of thick coax cable is 100 Mbps. _________________________
ANS: F, 10
PTS: 1 REF: 103
5. The "S" in STP stands for standard. _________________________
ANS: F, shielded
PTS: 1 REF: 106
6. The larger the number associated with AWG, the smaller the diameter of the wire.
_________________________
ANS: T PTS: 1 REF: 109
7. The IEEE 802.12 standard uses the CSMA/CD transmission technique. _________________________
ANS: F, demand priority
PTS: 1 REF: 116
8. A(n) driver is software that enables a computer to communicate with devices such as NICs, printers,
monitors, and hard disk drives. _________________________
ANS: T PTS: 1 REF: 121
9. A(n) multiplexer is a device that receives multiple inputs or signals from multiple sources and
transmits them to one (usually) or more shared high-speed media. _________________________
ANS: T PTS: 1 REF: 124
10. ISDN is a WAN technology for delivering voice, data, and video services over telephone lines.
_________________________
ANS: T PTS: 1 REF: 127
MULTIPLE CHOICE
1. ____ is the WAN standard for packet-switching networks.
TRUE/FALSE
1. One advantage of LDAP is that it enables information in different directory services to be shared.
ANS: T PTS: 1 REF: 98
2. Wireless technologies are used in situations where it is difficult or too expensive to use cable and in
situations in which flexibility to move network hosts and devices is a requirement.
ANS: T PTS: 1 REF: 100
3. On thick coax cable, if you attach devices more closely than 12.5 meters, the signal can be impaired,
and network errors may result.
ANS: F PTS: 1 REF: 102
4. An advantage of twisted-pair cable compared to thin coax cable is that it is resistant to EMI and RFI.
ANS: F PTS: 1 REF: 105
5. The maximum number of segments in 10BaseT UTP ethernet cable is 500.
ANS: F PTS: 1 REF: 109
6. Fat pipe is another name for STP cable.
ANS: F PTS: 1 REF: 111
7. Ethernet communications at speeds up to 100 Mbps as defined under the IEEE 802.3u standard are
called Fast Ethernet.
ANS: T PTS: 1 REF: 115
8. 10 Gigabit Ethernet operates only at full duplex.
ANS: T PTS: 1 REF: 118
9. Statistical multiple access is a switching method that enables multiple devices to communicate over
the same communications medium by creating time slots in which each device transmits.
ANS: F PTS: 1 REF: 132
MODIFIED TRUE/FALSE
1. The EIA/TIA-568 standard specifies that vertical cabling run between network equipment rooms,
floors, and buildings. _________________________
ANS: F, backbone
PTS: 1 REF: 99
, 2. Interfaces are devices to which the communications media connect. _________________________
ANS: T PTS: 1 REF: 100
3. Resistance is defined as the total amount of opposition to the flow of current and is measured in ohms.
_________________________
ANS: F, Impedance
PTS: 1 REF: 102
4. The maximum speed of thick coax cable is 100 Mbps. _________________________
ANS: F, 10
PTS: 1 REF: 103
5. The "S" in STP stands for standard. _________________________
ANS: F, shielded
PTS: 1 REF: 106
6. The larger the number associated with AWG, the smaller the diameter of the wire.
_________________________
ANS: T PTS: 1 REF: 109
7. The IEEE 802.12 standard uses the CSMA/CD transmission technique. _________________________
ANS: F, demand priority
PTS: 1 REF: 116
8. A(n) driver is software that enables a computer to communicate with devices such as NICs, printers,
monitors, and hard disk drives. _________________________
ANS: T PTS: 1 REF: 121
9. A(n) multiplexer is a device that receives multiple inputs or signals from multiple sources and
transmits them to one (usually) or more shared high-speed media. _________________________
ANS: T PTS: 1 REF: 124
10. ISDN is a WAN technology for delivering voice, data, and video services over telephone lines.
_________________________
ANS: T PTS: 1 REF: 127
MULTIPLE CHOICE
1. ____ is the WAN standard for packet-switching networks.
