Management, Monitoring and Optimization Flashcards
UTP cables use which type of connector?
RJ-11
RJ-25
RJ-45
RJ-45
UTP cables use an RJ-45 connector. RJ-11 and RJ-25 are often used for terminating telephone lines
Which type of cable will have the pins in the same order on both connectors?
Crossover cable
Straight-through cable
Console cable
Straight-through cable
Straight-through cables, known as drop cables or patch cables, will have the pins in the same order on both connectors
Which pins are switched in a crossover cable?
1 and 2, 3 and 4
1 and 3, 2 and 6
2 and 4, 5 and 7
1 and 3, 2 and 6
On a crossover cable, one connector has flipped the wires. Specifically, pins 1 and 3 get switched, and pins 2 and 6 get switched
UTP cable has specific colors for the wire associated with each pin. Based on the TIA/EIA 568B wiring standard, what is the correct color order, starting with pin 1?
White/Orange, Orange, Blue, White/Green, White/Blue, Green, White/Brown, Brown
Orange, White/Orange, White/Green, Blue, White/Blue, White/Brown, Brown, Green
White/Orange, Orange, White/Green, Blue, White/Blue, Green, White/Brown, Brown
White/Orange, Orange, White/Green, Blue, White/Blue, Green, White/Brown, Brown
If you are going to make your own UTP cables (drop/patch cables) to customize length, you need to make sure that the right wires get to the right pins
What is the technical term for what happens when two objects of dissimilar charge come in contact?
RFI
EMI
ESD
ESD
Electrostatic discharge (ESD) is the technical term for what happens when two objects of dissimilar charge come in contact
Which of the following govern how the network is configured and operated as well as how people are expected to behave on the network?
Baselines
Laws
Policies
Policies
Policies govern how the network is configured and operated as well as how people are expected to behave on the network, such as how users are able to access resources and which types of employees get network access
You have upgraded the firmware on your switches and access points. What documentation do you need to update?
Baselines and configuration documentation
Physical network diagram
Logical network diagram
Baselines and configuration documentation
A physical network diagram contains all the physical devices and connectivity paths on your network and should accurately picture how your network physically fits together in detail. This document will also have the firmware revision on all the switches and access points in your network
In an ICS, which of the following uses coded signals over communication channels to acquire information about the status of the remote equipment?
ICS server
Telemetry system
Human interface
ICS server
An ICS server, also called a data acquisition server, uses coded signals over communication channels to acquire information about the status of the remote equipment for display or for recording functions
Load testing, connectivity testing, and throughput testing are all examples of what?
Load balancing
Network monitoring
Packet sniffing
Network monitoring
Network monitoring can have several names, including load testing, connectivity testing, and throughput testing. You will also hear network monitors referred to as protocol analyzers
What can provide different priority levels to different applications, data flows, or users to help guarantee performance levels?
1 Gbps connection
Bandwidth
Quality of Service
Quality of Service
QoS provides different priority levels to different applications, data flows, or users so that they can be guaranteed a certain performance level
Which of the following identifies steps to recover from adverse effects caused by a change?
Rollback process
Approvable process
Notification process
Rollback process
Those making the changes should be completely briefed in rollback procedures, and they should exhibit a clear understanding of them prior to implementing the changes
After a change has been made, which of the following is not a document that needs to be updated?
Network configurations
Additions to the network
Physical location changes
All of the above
All of the above
The job isn’t complete until the paperwork is complete. In this case, network configurations, additions to the network, and physical location changes should be updated to reflect the changed state of the network
Which of the following provides increased availability to firewalls and gateways?
DHCP
CARP
SaaS
CARP
Common Address Redundancy Protocol (CARP) can be used to increase availability of gateways and firewalls
You have added a new cable segment to your network. You need to make sure you document this for troubleshooting purposes. What should you update?
The disaster recovery plan
The wiring schematics
The router connections document
The wiring schematics
If you add a new cable segment to the network, you need to update the wiring schematics document
What is the basic purpose of QoS? (Choose two.)
Block access to certain websites
Make your entire network run faster
Provide priority to one or more types of traffic over others
Block access to web resources for just certain users or groups
Prioritize delay-sensitive traffic
Provide priority to one or more types of traffic over others
Prioritize delay-sensitive traffic
Quality of service (QoS) is basically the ability to provide different priority to one or more types of traffic over other levels for different applications, data flows, or users so that they can be guaranteed a certain performance level
Which network-performance optimization technique can delay packets that meet certain criteria to guarantee usable bandwidth for other applications?
Traffic shaping
Jitter
Logical
Traffic shaping
Traffic shaping, also known as packet shaping, is a form of bandwidth optimization. It delays packets that meet a certain criteria to guarantee usable bandwidth for other applications. Essentially, with traffic shaping, you’re delaying some traffic so other traffic can get through. Traffic shaping uses bandwidth throttling to ensure that certain data streams don’t send too much data in a specified period of time
Which of the following is neither a virtualization component nor a service made available through virtualization?
Virtual servers
SaaS
CARP
CARP
Common Address Redundancy Protocol (CARP) can be used to increase availability of gateways and firewalls. It is not related to virtualization
Which of the following are reasons to optimize network performance? (Choose all that apply.)
Maximizing uptime
Minimizing latency
Using VoIP
Using video applications
None of the above
Maximizing uptime
Minimizing latency
Using VoIP
Using video applications
There are many bandwidth-intensive programs, like VoIP and video streaming. These are just a few of the reasons it’s necessary to try to optimize network performance
What term describes technologies that can deliver voice communications over the Internet?
Jitter
Uptime
Voice over Internet Protocol
Voice over Internet Protocol
Voice over Internet Protocol (VoIP) is a general term that describes several technologies that are able to deliver voice communications over the Internet or other data networks
To optimize performance on your network, which of the following control traffic in some way? (Choose all that apply.)
QoS
Traffic shaping
Load balancing
Caching services
None of the above
QoS
Traffic shaping
Load balancing
Caching services
There are many theories and strategies you can apply to optimize performance on your network. All of them deal with controlling the traffic in some way. Strategies include QoS, traffic shaping, load balancing, high availability, and the use of caching servers. You want to ensure that you have plenty of bandwidth available for those applications that need it, such as critical service operations, VoIP, and real-time multimedia streaming
