Networking Flashcards
Which the following uses port 110?
FTP
Telnet
POP3
POP3
POP3 uses port 110. SSH uses port 22, FTP uses ports 20 and 21, and Telnet uses port 23
Which of the following uses two ports?
FTP
SSH
Telnet
FTP
FTP uses ports 20 and 21. POP3 uses port 110, SSH uses port 22, and Telnet uses port 23
Which the following uses port 22?
FTP
SSH
Telnet
SSH
SSH uses port 22, POP3 uses port 110, FTP uses ports 20 and 21, and Telnet uses port 23
Which device operates at layer 2?
Router
Switch
Repeater
Router
Switches operate at layer 2. Routers operate at layer 3. Repeaters and hubs operate at layer 1
Which device operates at layer 1?
Switch
Bridge
Hub
Hub
Hubs operate at layer 1. Switches and bridges operate at layer 2. Routers operate at layer 3
Which device operates at layer 2?
Router
Switch
Repeater
Switch
Switches operate at layer 2. Routers operate at layer 3. Hubs and repeaters operate at layer 1
Which of the following is not a private IP address range?
- 0.0.0–10.255.255.255
- 16.0.0–172.16.255.255
- 168.0.0–192.168.255.255
172.16.0.0–172.16.255.255
The class B range is 172.16.0.0–172.31.255.255. The other ranges are correct
Which of the following delivers an upload speed equal to the download speed?
SDSL
VDSL
RADSL
SDSL
Symmetric DSL (SDSL) offers an upload equal to the download speed. The other versions all have slower upload speed than download speed
Which of the following is an area where you can place a public server for access by people you might not trust otherwise?
NAT
DMZ
Intranet
DMZ
A demilitarized zone (DMZ) is an area where you can place a public server for access by people you might not trust otherwise. NAT is a service that maps private IP addresses to public IP addresses. The intranet is the internal network that should be protected. The Internet is the untrusted public network
Which of the following operates in the 5.0 GHz range?
- 11a
- 11b
- 11g
- 11a
802. 11a operates in the 5.0 GHz range. The other standards all operate in the 2.4 GHz range
Which of the following operates at a maximum of 2 MB?
- 11a
- 11b
- 11
- 11
802. 11a and 802.11g have a maximum rate of 54 MB, 802.11b has a maximum of 11 MB, and 802.11 has a maximum of 2 MB
Which of the following has the largest cell size?
- 11a
- 11b
- 11g
- 11g
802. 11g has a distance that is the cell size of 125 ft. The others have a distance of 115 ft
Which type of server resolves IP addresses to hostnames?
HTTP
DNS
SQL
DNS
DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. DHCP servers provide automatic IP configurations. SQL is a database server
Which type of server provides automatic IP configurations?
HTTP
DNS
DHCP
DHCP
DHCP servers provide automatic IP configurations. DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. SQL is a database server
Which type of server is a database server?
DNS
DHCP
SQL
SQL
A SQL server is a database server. DNS servers resolve IP addresses to hostnames. HTTP servers are web servers. DHCP servers provide automatic IP configurations
Which of the following is a Class B address?
- 168.5.5
- 6.6.3
- 6.8.9
172.6.8.9
The Class B range is 128–191. The class A range is 1–126. The Class C range is 192–223
Which of the following is a Class A address?
- 168.5.5
- 6.6.3
- 6.8.9
10.6.6.3
The Class A range is 1–126. The class B range is 128–191. The Class C range is 192–223
Which of the following is a Class C address?
- 168.5.5
- 6.6.3
- 6.8.9
192.168.5.5
The Class C range is 192–223. The class A range is 1–126. The class B range is 128–191. The 224 range is for multicasting
When personal devices include networking capabilities and can communicate directly with one another, they create which type of network?
WAN
MAN
PAN
PAN
A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Occasionally, a WAN will be referenced as a metropolitan area network (MAN) when it is confined to a certain geographic area, such as a university campus or city. Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways
Which of the following is a collection of two or more LANs, typically connected by routers and dedicated leased lines?
WAN
MAN
PAN
MAN
Metropolitan area network (MAN) is the term occasionally used for a WAN that is confined to a certain geographic area, such as a university campus or city. A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways
Which of the following is a form of ad hoc WLAN?
WAN
PAN
WMN
WMN
Wireless mesh networks (WMN) are a form of an ad hoc WLAN that often consist of mesh clients, mesh routers, and gateways. A personal area network (PAN) is a LAN created by personal devices. A wide area network (WAN) is a collection of two or more LANs, typically connected by routers and dedicated leased lines. Occasionally, a WAN will be referenced as a metropolitan area network (MAN) when it is confined to a certain geographic area, such as a university campus or city
Which of the following is used to attach media connectors to the ends of cables?
Crimper
Cable stripper
Multimeter
Crimper
Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym). A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner’s signal. This tool makes it easier to find the beginning and end of a cable
Which of the following includes a voltmeter, an ohmmeter, and an ammeter?
Crimper
Cable stripper
Multimeter
Multimeter
A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym). Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner’s signal. This tool makes it easier to find the beginning and end of a cable
Which of the following makes it easier to find the beginning and end of a cable?
Cable stripper
Multimeter
Tone generator
Tone generator
A toner probe has two parts: the tone generator (called the toner) and the tone locator (called the probe). The toner sends the tone, and at the other end of the cable, the probe receives the toner’s signal. This tool makes it easier to find the beginning and end of a cable. Wire crimpers look like pliers but are used to attach media connectors to the ends of cables. A cable stripper is used to remove the outer covering of the cable to get to the wire pairs within. A multimeter combines a number of tools into one. There can be slight variations, but a multimeter always includes a voltmeter, an ohmmeter, and an ammeter (and is sometimes called VOM as an acronym)
