Network+ Flashcards
What is the decimal equivalent?
0 0 0 0 0 0 0 0
0
What is the decimal equivalent?
1 0 0 0 0 0 0 0
128
What is the decimal equivalent?
1 1 0 0 0 0 0 0
192
What is the decimal equivalent?
1 1 1 0 0 0 0 0
224
What is the decimal equivalent?
1 1 1 1 0 0 0 0
240
What is the decimal equivalent?
1 1 1 1 1 0 0 0
248
What is the decimal equivalent?
1 1 1 1 1 1 0 0
252
What is the decimal equivalent?
1 1 1 1 1 1 1 0
254
What is the decimal equivalent?
1 1 1 1 1 1 1 1
255
What’s 802.11a?
The IEEE standard for wireless LANs using the U-NII spectrum, OFDM encoding, at speeds of up to 54 Mbps.
What’s 802.11b?
The IEEE standard for wireless LANs using the ISM spectrum, DSSS encoding, and speeds of up to 11 Mbps.
What’s 802.11g?
The IEEE standard for wireless LANs using the ISM spectrum, OFDM or DSSS encoding, and speeds of up to 54 Mbps.
What’s 802.11n?
The IEEE standard for wireless LANs using the ISM spectrum, OFDM encoding, and multiple antennas for single-stream speeds up to 150 Mbps.
What’s 802.1Q?
The IEEE standardized protocol for VLAN trunking.
What’s 802.2?
The IEEE LAN protocol that specifies an implementation of the LLC sublayer of the data link layer.
What’s 802.3?
The set of IEEE LAN protocols that specifies the many variations of what is known today as an Ethernet LAN.
What is the informal IEEE standard name (cable)?
802.3
10BASE-T
What is the informal IEEE standard name (cable)?
802.3ab
1000BASE-T
What is the informal IEEE standard name (cable)?
802.3an
10GBASE-T
What is the informal IEEE standard name (cable)?
802.3u
100BASE-T
What is the informal IEEE standard name (cable)?
802.3z
1000BASE-LX
What is the private IPv4 address range for APIPA?
- 254.0.0 to 169.254.255.255
- 254.0.0/16
What is the cable type and max. length?
10BASE-T
Copper, 100 m
What is the cable type and max. length?
100BASE-T
Copper, 100 m
What is the cable type and max. length?
1000BASE-LX
Fiber, 5000 m
What is the cable type and max. length?
1000BASE-T
Copper, 100 m
What is the formal IEEE standard name?
10BASE-T
802.3
What is the formal IEEE standard name?
100BASE-T
802.3u
What is the cable type and max. length?
10GBASE-T
Copper, 100 m
What is the formal IEEE standard name?
1000BASE-LX
802.3z
What is the formal IEEE standard name?
1000BASE-T
802.3ab
What is the formal IEEE standard name?
10GBASE-T
802.3an
Which class?
192 to 223
Class C
What is the first octet range and purpose of the IPv4 Address Class?
Class A
1 - 126
Unicast (large networks)
What is the first octet range and purpose of the IPv4 Address Class?
Class B
128 - 191
Unicast (medium-sized networks)
What is the first octet range and purpose of the IPv4 Address Class?
Class C
192 - 223
Unicast (small networks)
What is the first octet range and purpose of the IPv4 Address Class?
Class D
224 - 239
Multicast
Class E
240 - 255
Experimental
What is the prefix length (subnet mask) for Class A?
/8
What is the prefix length (subnet mask) for Class B?
/16
What is the prefix length (subnet mask) for Class C?
/24
Which class?
1 to 126
Class A
Which class?
128 to 191
Class B
What is the first octet range?
Class A
1 to 126
What is the first octet range?
Class B
128 to 191
What is the first octet range?
Class C
192 to 223
What’s the port number and protocol?
DHCP
67, 68
UDP
What’s the port number and protocol?
DNS
53
UDP, TCP
What’s a DS1?
Digital signal level 1. 1.544 Mbps.
Equal to 24 DS0 channels. Also called a T1.
What’s a T1?
Same as DS1. 1.544 Mbps.
Equal to 24 DS0 channels.
What’s a DS3?
Digital signal level 3. 44.736 Mbps.
Equal to 28 DS1 channels. Also called a T3.
What’s an E1?
Similar to T1, but used in Europe. 2.048 Mbps.
Equal to 32 DS0 channels.
What’s a DS0?
Digital signal level 0. 64 Kbps.
Describe the HDLC Flag / Ethernet Preamble field.
Lists a recognizable bit pattern so that the receiving nodes realize that a new frame is arriving.
Describe the HDLC Address / Ethernet Destination Address field.
Identifies the destination device.