Network Availability 3.3

Question 1

Being up and operational

Answer 1

Availability

Question 2

Not dropping packets

Answer 2

Reliability

Question 3

Measures average time it takes to repair a network device when it breaks

Answer 3

Mean Time to Repair (MTTR)

Question 4

Measures average time between when failures occur on a device

Answer 4

Mean Time Between Failures (MTBF)

Question 5

Cisco’s proprietary first-hop redundancy protocol which allows for an active and a standby router to be used together

Answer 5

Hot Standby Router Protocol (HSRP)

Question 6

Used if the default gateway goes down and clients couldn’t leave the subnet

Answer 6

Layer 3 redundancy

Question 7

IETF’s open-standard variant of HSRP which allows for an active router and multiple standby routers

Answer 7

Virtual Router Redundancy Protocol (VRRP)

Question 8

Cisco’s proprietary first-hop redundancy which focuses on load balancing over redundancy

Answer 8

Gateway Load Balancing Protocol (GLBP)

Question 9

Achieves redundancy by having multiple links between the network devices where load balancing over multiple links can occur

Answer 9

Link Aggregation Control Protocol (LACP)

Question 10

Creates more than one physical path between the server and its storage devices for better fault tolerance and performance

Answer 10

Multipathing

Question 11

Provides emergency power to a load when the input power source or main power fails

Answer 11

Uninterruptible Power Supply (UPS)

Question 12

Using a sprinkler system and pipes that always contain water

Answer 12

Wet Pipe System

Question 13

A detector actuation like a smoke detector and a sprinkler must be tripped prior to water being released

Answer 13

Pre-Action System

Question 14

To categorize traffic, apply a policy, and prioritize them in accordance with a QoS policy

Answer 14

QoS

Question 15

An available building that does not have any hardware or software in place or configured

While recovery is possible, it is going to be slow and time-consuming

cheapest option

Answer 15

Cold Site

Question 16

An available building that already contains a lot of the equipment

Answer 16

Warm Site

Question 17

an available building that already has the equipment and data in place and configured

Answer 17

Hot Site

Question 18

Allows for the creation of a recovery version of an organization’s enterprise network in the cloud

Answer 18

Cloud Site

Question 19

Time and service level within which a business process must be restored after a disaster to avoid unacceptable consequences

Answer 19

Recovery Time Objective (RTO)