NETWORK+ MEASURE UP Misc

Question 1

Trunking does?

Answer 1

high bandwidth for all VLANs in-between switches

Question 2

NIC teaming does?

Answer 2

2 NICs combine for more bandwidth over 1 link

Question 3

Port mirroring does?

Answer 3

duplicates traffic record into 1 port

Question 4

___ antennae are highly directional

Answer 4

point to point

Question 5

___ antennae are less focused

Answer 5

point to multipoint

Question 6

___ antennae are all directional

Answer 6

omnidirectional antenna

Question 7

___ acts like omnidirectional antennae

Answer 7

antenna array

Question 8

___ directional antennae, similar to satellite

Answer 8

parabolic dish antenna

Question 9

LACP (Link Aggregation Control Protocol) controls?

Answer 9

port bonding

Question 10

Port bonding is?

Answer 10

combines 2 ports into one channel

Question 11

STP (Spanning Tree Protocol) does?

Answer 11

prevents switch loops

Question 12

ICMP (Internet Control Management Protocol) does?

Answer 12

reports packet delivery errors & info

Question 13

ARP (Address Resolution Protocol) does?

Answer 13

resolves MAC to IP addresses

Question 14

IGMP (Internet Group Management Protocol) does?

Answer 14

broadcasts packets to specific computer groups

Question 15

UDP (User Datagram Protocol) does?

Answer 15

delivers connectionless packet service

Question 16

Connectionless packet delivery doesn’t provide what 2 things?

Answer 16

delivery guarantee

proper order

Question 17

Channel bonding does?

Answer 17

2 bonded channels increase bandwidth

Question 18

A screened subnet does what (usually for database servers)?

Answer 18

isolates a server, within intranet, from all but authorized users

Question 19

A packet analyzer/sniffer does?

Answer 19

makes packet content visible

Question 20

TCP (Transmission Control Protocol) does what 2 things?

Answer 20

sequencing &

acknowledging packets

Question 21

TCP (Transmission Control Protocol) is what kind of orientation?

Answer 21

connection oriented

Question 22

SIP (Session Initiation Protocol) does?

Answer 22

signal &

call control for VoIP

Question 23

IP is what kind of orientation?

Answer 23

connectionless

Question 24

IP does what 4 things?

Answer 24

addresses
routes
fragments
reassembles packets

Question 25

Port 992 used by?

Answer 25

Telnet (secured by TLS or SSL)

Question 26

TLS stands for?

Answer 26

Transport Layer Security

Question 27

TLS does?

Answer 27

secured Telnet

Question 28

A port scanner can do?

Answer 28

detect unauthorized services

Question 29

SCADA stands for?

Answer 29

Supervisory Control And Data Acquisition

Question 30

SCADA does?

Answer 30

computerizes control of facility processes (like power and heat)

Question 31

Which wireless encryption is most secure?

Answer 31

WPA2-PSK

Question 32

SNMP (Simple Network Management Protocol) does what 2 things?

Answer 32

provides a network management console with device info | enables control

Question 33

SLA stands for?

Answer 33

Service Level Agreement

Question 34

SMB (Smart Message Block) does what?

Answer 34

file sharing between subnets

Question 35

CSMA stands for?

Answer 35

Carrier Sense Multiple Access

Question 36

A CMSA/CA backup factor does?

Answer 36

time waited before rechecking for a clear channel

Question 37

Encapsulation does?

Answer 37

transports data packets between incompatible protocols