Network Operations Flashcards
When drawing a router on a network diagram, which is correct?
A square with two sets of arrows
A square with picture inside that looks like the sun
A circle with two sets of arrows perpendicular to each other
A circle with two sets of arrows perpendicular to each other
A router is commonly drawn as a circle with two sets of arrows perpendicular to each other, depicting a type of crossroads for packets
Which document would you create to detail step-by-step instructions to decommission a server from your network?
ISO document
SOP document
Server policy
SOP document
The standard operating procedure document details the step-by-step work instructions necessary to decommission a server
Which group of people evaluates changes for the network to reduce the possibility of affecting day-to-day operations?
Network operations
Executive committee
Change advisory board
Change advisory board
The change advisory board reviews changes proposed for the network so that they do not affect day-to-day operations
When labeling cable in a switch closet, which statement is a best practice?
The label should have the name of the workstation.
The label should be labeled from the least specific to the most specific location.
The label should be labeled from the most specific to the least specific location.
The label should be labeled from the least specific to the most specific location.
When labeling cable in the switch closet, the label should depict the least specific location, such as a building, to the most specific location, such as the outlet number. Workstation names and purposes can change over time
Why should performance baselines be captured over a long period of time?
To define normal operations and activity
To define a historical representation of activity
To help validate when a problem is solved
All of the above
All of the above
Performance baselines gathered over time help create a historical representation of activity and normal operations. When a server is performing poorly, the baseline can validate both the problem and implemented solution
Which type of software helps assist in tracking IT inventory?
Asset management software
Life-cycle management software
Accounting software
Asset management software
Asset management software assists in tracking IT inventory, such as network equipment and other fixed tangible assets
Configuring a group of disks with RAID level 5 is an example of which availability concept?
Fault tolerance
High availability
Clustering
Fault tolerance
Configuring a group of disks with RAID level 5 striping with parity is an example of fault tolerance, because redundancy of resources is used to ensure operations in the event of failure
You have a high demand of normal requests on the company’s web server. Which strategy should be implemented to avoid issues if demand becomes too high?
Port aggregation
Fault tolerance
Load balancing
Load balancing
Load balancing should be implemented with two or more web servers to scale out the servers and lower demand on any one single web server
Which type of recovery is the least expensive to maintain over time?
Cold site recovery
Warm site recovery
Hot site recovery
Cold site recovery
A cold site is the least expensive to maintain over time, because very little or no hardware is at the site. If a disaster occurs, it will take time to acquire hardware and configure
A recovery from tape will take 4 hours; what is this an example of?
The recovery point objective (RPO)
The recovery time objective (RTO)
Grandfather, father, son (GFS) rotation
The recovery time objective (RTO)
The recovery time objective (RTO) is a measurement of how fast you can recover from data loss from backup
You are the network administrator for your organization. Backup windows are starting to extend into work shifts. You have been asked to recommend a better strategy; what will speed up backups to shorten the window?
Disk-to-tape backups
Disk-to-disk backups
Full backups
Disk-to-disk backups
Disk-to-disk backups will speed up any backup, since the backup is coming off disks and being backed up to disks. Although GFS rotations may speed up end-of-week and end-of-month backups, it is considered a rotation strategy
Which backup job will back up files with the archive bit set and then reset the archive bit for the next backup?
Archive backup
Differential backup
Incremental backup
Incremental backup
An incremental backup will only back up files that have the archive bit set. After backing up the files, the archive bit is reset for the next backup
You are contracting with a new service provider and are reviewing their service level agreement (SLA). The SLA states that their commitment to uptime is 99.99 percent. What is the expected downtime per year?
- 65 days
- 76 hours
- 56 minutes
52.56 minutes
An SLA of 4 nines is 52.56 minutes per year of expected downtime. This equates to 4.38 minutes per month that the service can be down
You are the network administrator for your organization. You have been tasked to aggregate bandwidth of two 1 Gbps ports between a Cisco switch and an HP switch. Which protocol should you choose to complete the task?
LACP
802.1q
PAgP
LACP
Link Aggregation Control Protocol (LACP) is an open standard control protocol used for aggregation of ports between non-Cisco switches. Non-Cisco switches will not support the Cisco proprietary protocol of Port Aggregation Protocol (PAgP)
Which type of uninterruptable power supplies (UPS), often found in datacenters, provides constant power from the battery-powered inverter circuit?
Line interactive UPS
Standby UPS
Online UPS
Online UPS
An online UPS uses the AC power for the rectifier/charging circuit that maintains a charge for the batteries. The batteries then supply the inverter with a constant DC power source. The inverter converts the DC power source back into an AC power circuit again that supplies the load
