Network Security 3

Question 1

This stands for a straight tip connector. This was the most commonly used connector with multi-mode fiber until the mid-2000s. It was used on campuses, corporate networks, and for military purposes. Today, LC connectors are usually used instead, as they are denser and more convenient at almost the same cost.

Answer 1

ST Connector

Question 2

lucent connector - This is a smaller version of the standard connector (SC). This supports more ports to be used in the same space. This is probably the most common type used in corporate data centers today and is usually used with SFP (small form-factor pluggable) transceivers.

Answer 2

LC Connector

Question 3

are used to connect a device to a wall outlet, for example. The wall outlet is wired to another patch panel in the networking closet, and that networking panel is wired into a switch. These cables can also be used to wire servers in a rack to the top-of-rack (ToR) switch.

Answer 3

Patch Cables

Question 4

Provides 1 or 2 Mbps transmission in the 2.4 GHz band, Uses frequency-hopping spread spectrum (FHSS) (the signal hops between random frequencies to reach the destination), Can also use direct-sequence spread spectrum (DSSS) (data is divided into smaller pieces before being sent with a higher bitrate)

Answer 4

802.11

Question 5

802. 11a : Provides up to 54 Mbps in the 5 GHz band
803. 11b : Provides 11 Mbps in the 2.4 GHz band, Uses only direct-sequence spread spectrum (DSSS)
804. 11g : Speeds up to 54 Mbps in the 2.4 GHz bands

Answer 5

some 802.11 standards …

Question 6

802. 11n : Adds multiple-input multiple-output (MIMO) (uses multiple signals on different frequencies to increase the range and bandwidth of wireless networks and forms directed beams toward each client, reducing the interference from other wireless devices nearby)
803. 11ac : Delivers data rates of 433 Mbps per signal or 1.3 Gbps in a three-signal design

Answer 6

some 802.11 standards …

Question 7

The first Wi-Fi specification to operate in frequency bands below 1 GHz (900 MHz), Nearly twice the range of other Wi-Fi technologies, Can penetrate walls and other barriers better than previous Wi-Fi standards, Much lower bandwidth (< 9 Mbps), Designed for Internet of Things (IoT) devices and similar use cases with limited bandwidth needs over larger distances

Answer 7

802.11ah

Question 8

Update to 802.11ac, Rebranded to Wi-Fi 6, Adds support for 6 GHz frequency range, Support for approximately 1–10 Gbps.

10BASE-T : 10 Mbps over UTP

1000BASE-X : 1 Gbps over fiber optic cables

1000BASE-T : 1 Gbps over UTP

10GBASE-X : 10 Gbps over foc

10GBASE-T : 10 Gbps over UTP

ping uses protocol ICMP

Answer 8

802.11ax etc …

Question 9

It displays each hop (next router) in a numerical list with the hop’s IP address and the time it takes to receive the packet.

Answer 9

traceroute/tracert

Question 10

is similar to traceroute or tracert in that it displays the path taken by a packet from its source to its destination.

Answer 10

Tracepath