N10-008 Network+ Practice Test Sections 3
CRC (acronym)
Cyclical Redundancy Check
A sysadmin recently implemented a policy that prevents employees from transferring data from their work email to their personal email. What kind of policy did the sysadmin implement?
DLP
DLP (acronym)
Data Loss Prevention
A sysadmin is monitoring a server to see what is causing performance issues. The sysadmin sees high processor and memory utilization. What should the sysadmin monitor to see what is causing it?
Disk I/O
KPI (acronym)
Key Performance Indicator
LACP (acronym)
Link Aggregation Control Protocol
Which solution does a network closet use to clean a power signal?
PDU
PDU (acronym)
Power Distribution Unit
SOP (acronym)
Standard Operating Procedure
Jitter
The variability of latency over time across a network.
IDF
This provides termination for access layer switches that serve a given area, such as a single office floor. Each IDF has a trunk link to the MDF
Mean Time To Repair formula
Total number of unplanned maintenance hours divided by the number of failure incidents
KPI
a measurable value or metric that is used to evaluate the performance and success of an individual, team, department, or organization in achieving specific objectives or goals. KPIs are quantifiable and provide a way to track progress, assess performance, and make informed decisions
Floor plan
refers to a visual representation or diagram of the physical layout of a building or a specific floor within a building. It provides a detailed view of the physical infrastructure, including rooms, walls, doors, windows, and other architectural elements
NIC teaming
A type of link aggregation in which two or more NICs work in tandem to handle traffic to and from a single node.
Site survey
An in-depth examination and analysis of a wireless LAN site.
A company is working to contract out its information technology needs to a third-party managed service provider. As part of the provider's onboarding practices, they ran a report to identify and record all assets, their age, warranty, and performance. What kind of report is this managed service provider completing?
Audit
A sysadmin noticed that there were changes to the hardware firewall not properly documented. The sysadmin does not know who made the change. What type of log should the sysadmin investigate that may shed light on who made the change in the firewall?
Audit
A network engineer recently received brand new network equipment for the corporate office and wants to run a check of the systems to ensure they know what to expect from the equipment. What kind of report should the sysadmin run?
Baseline
A network engineer reset a switch back to factory settings and is trying to set up the device again. However, the engineer does not remember what settings need configuring. What kind of configuration did the engineer NOT reset?
Baseline
A piece of networking equipment had a change made to it that has caused too many issues for the network engineer to try to fix. Instead, the engineer wants to roll back to the configuration originally established with the initial equipment setup. The sysadmin is rolling back to what kind of configuration?
Baseline
What describes the calculation of a checksum based on the contents of a frame used to detect errors?
CRC
A sysadmin is following a set of procedures to ensure changes to the corporate information technology environment do not adversely affect the availability of those resources. What kind of policy is the sysadmin following?
Change Management
A recent change to the company's device management system caused an issue, breaking employees' access to corporate email on their work cell phones. What kind of policy could the company implement to mitigate future issues?
Change management
Name the method of fault tolerance used when a group of servers, consisting of redundant nodes, prevents disruption of network services.
Clustering
A sysadmin is responding to an issue with employees who cannot access their terminal server from outside the office. After looking at the router, the settings seemed to have changed. What is most likely the issue with the network equipment?
Configuration
A sysadmin has completed two contracts with two different internet vendors for the corporate office. The justification by the sysadmin is that they need to have two different connections from different providers to prevent an issue with one of them affecting the office. What networking concept did the sysadmin use to justify the added expense?
Diverse paths
SOP
Document that sets out the principal goals and considerations, such as budget, security, or customer contact standards, for performing a task. It also identifies lines of responsibility and authorization for performing it
A network engineer is trying to get approval to replace aging networking equipment. The justification for the purchase was that the office lost connectivity due to the devices becoming overloaded and overheated. What was the engineer using as justification?
Downtime/Uptime
A network operations engineer is investigating alerts that the data center keeps switching to battery backup. What environmental factor should the engineer investigate?
Electrical
What piece of network equipment is typically defined as "next-generation" and allows network engineers to allow or deny traffic to specific locations within the network?
Firewall
A company is developing a new office and has tasked the information technology department with creating a document to show where their electrical vendor needs to run electrical and internet cabling throughout the office. What kind of diagram would best accomplish this?
Floor
An organization recently renovated its office. The IT department has tasked an entry-level technician with moving equipment to the proper cubicles and setting the equipment up for each employee. However, there are no labels at each cubicle. What kind of document would help the technician place each computer at the correct cubicle?
Floor plan
A sysadmin is running into the issue that traffic is getting dropped by the network equipment. After researching the issue, the sysadmin found that the individual packets were too large. What should the sysadmin configure to remove?
Giants
What kind of disaster recovery site allows for immediate restoration of services by having a duplication of equipment in a separate location not contracted out to an online vendor?
Hot
A large internet company is developing a disaster recovery plan (DRP). The plan includes protocols for services to automatically switch to the company's recovery server site. Which of the following terms most accurately describes the recovery site?
Hot site
What is the name of the smaller technical closets, typically found in large network environments, that connect back to a central technical closet?
IDF
A company requested a sysadmin to set up a plan in case of issues arising from systems going down. Part of that plan involves procedures to bring the system back online, restore data, and how to communicate that issue and its resolution to the company. What kind of plan would best define what the sysadmin needs to set up?
Incident
IDF (acronym)
Intermediate Distribution Frame
A sysadmin improved the bandwidth for the office, improving the quality of phone calls. What did the sysadmin improve?
Jitter
Users are reporting that their phone calls are really garbled and of poor quality. What should the sysadmin investigate?
Jitter
A sysadmin is investigating an issue between two geographically distant offices. Users at these locations report that accessing the shared drive at the corporate office is taking too long, even though all three locations have gigabit-speed internet. What indicator could help direct the sysadmin to the issue?
Latency
After hooking up a computer to the network with an ethernet cable and connecting the corresponding patch panel port to the switch, the port did not light up, showing it is live. What does the sysadmin need to configure on the switch to fix the connectivity issue?
Link state
A real estate investment company hosts its own property management software in a data center. They have ten servers, but the sysadmin is noticing traffic only going to four of the servers. The piece of networking equipment meant to even the traffic seems misconfigured. What should the sysadmin fix to resolve this issue?
Load balancer
What illustrates the network architecture of a group of interconnected network equipment without involving a precise layout?
Logical
A Chief Investment Officer ran a report showing the cheaper model workstations that the company is buying have a high failure rate. The CIO estimates three months will pass before another workstation becomes unusable. What kind of calculation is the CIO running?
MTBF
MDF (acronym)
Main Distribution Frame
A Key Performance Indicator (KPI) is a network performance metric used to determine asset reliability. Which of the following is NOT an example of a KPI?
Maximum Tolerable Downtime (MTD)
MTD (acronym)
Maximum Tolerated Downtime
MTBF (Acronym)
Mean Time Between Failures
MTTR (acronym)
Mean Time to Repair
MOU (acronym)
Memorandum of Understanding
A server running an SQL database is running out of capacity. The sysadmin noticed the disk space is not maxed out, and the processor is running at 25% capacity as well. What is another component of the server that the sysadmin should look at to restore the database's functionality?
Memory
A network engineer just set up a secondary connection at all their remote locations. The second connection links each site to another site to prevent downtime in case the primary connection fails. What networking concept did the engineer set up?
Multipathing
The Chief Information Officer canceled a contract with a third-party vendor since they refused to sign a contract to limit what uses of sensitive data are permitted, what storage and distribution restrictions to enforce, and what penalties to incur for breaches of the agreement. What kind of contact did the vendor fail to sign?
NDA
What kind of tool can a network administrator run to measure the network statistics of a building's network equipment?
NetFlow
A sysadmin noticed a large amount of traffic connecting to a server, causing high processor and memory utilization. What was the sysadmin monitoring?
Packet count
Change management
Process of making sure changes are made smoothly and efficiently and do not negatively affect systems reliability, security, confidentiality, integrity, and availability.
A desktop engineer is responding to a support request stating that a brand-new machine with 16GB's memory and an m.2 SSD is still running too slow. What component did an administrator poorly choose when ordering the device?
Processor
A network engineer is setting up a policy to limit who has access to the terminal server and when they are allowed to access the terminal server and log any actions done on the terminal server. What policy would the network engineer best implement in this situation?
Remote access
A consumer is looking to set up a home network for a client and needs to set up a device that can connect to the client's internet provider. What kind of box should the consumer install for the client?
Router
A sysadmin is running into the issue that traffic is getting dropped by the network equipment. After researching the issue, the sysadmin found that the individual packets were too small. What should the sysadmin configure to remove?
Runts
A sysadmin is looking to monitor the network devices by pulling data off of them remotely. What kind of network equipment functionality can the sysadmin use to accomplish this?
SNMP trap
What describes the function of a switch that gathers and sends out device statistics and issues alerts?
SNMP trap
What is a basic document that helps employees complete the same task with the same steps to ensure quality and success?
SOP
A sysadmin is implementing a policy that establishes a duty for each employee to ensure confidentiality, integrity, and availability of data assets in the company ownership. What kind of policy is the sysadmin creating?
Security
A new switch has a better ability to handle data transfer than a previous switch to prevent it from being overloaded. An overloaded router can cause a problem with what process?
Sending or receiving traffic
What kind of contract helps shield both the customer and vendor from legal risk and enforces a standard for what the customer should expect from a vendor?
Service level
A help desk technician is assisting the sysadmin in determining the best location for wireless access points. What kind of report should the technician generate?
Site Survey
A sysadmin was monitoring the logs of the network equipment in the corporate office and noticed there were a lot of packet collisions. After digging around the individual network boxes, the sysadmin found that there was a misconfigured switch. What setting most likely contributed to packet collisions?
Speed/Duplex
A Chief Information Officer needs to prepare a process for the purchase, maintenance, and decommissioning of assets in the company. The CIO wants to ensure properly supported equipment. What kind of roadmap would help the CIO accomplish this task?
System life cycle
MDF
The location for distribution/core level internal switching. The MDF will terminate trunk links from multiple IDFs. This also serves as the location for the termination of external WAN circuits
Mean Time To Failure formula
Total operational time divided by the number of devices
Mean Time Between Failures formula
Total operational time divided by the number of failures
What is the correct formula for the mean time between failure?
Total operational time divided by the number of failures
A sysadmin is investigating an issue on a switch after receiving reports that connecting to any network resource, local or on the web, is much slower than normal. What kind of log should the sysadmin investigate to determine what may be causing the issue?
Traffic
Clustering
a group of servers, each of which is referred to as a node, that provides redundancy and fault tolerance for critical applications
MOU
a preliminary or exploratory agreement to express an intent to work together. It is usually intended to be relatively informal and not to act as binding contracts
Checksum
a simple mathematical algorithm that generates a value based on the data within a frame. This value is then compared with the checksum value received at the receiving end to determine if any errors have occurred during transmission
Baseline
a snapshot of a known good configuration and how a device operates at that known good configuration
PDU
device used in electrical systems to distribute power to multiple devices or equipment from a single power source. It serves as a central hub for distributing electrical power and providing power management capabilities
Security Policy
establishes a duty for each employee to ensure the confidentiality, integrity, and availability of any data assets or processing systems that they use as part of their job
MTBF
identifies the average time between failures
Link Aggregation
lets you combine multiple Ethernet links into a single logical link between two network devices
MTD
maximum duration or length of time that a system, service, or business operation can afford to be non-functional or unavailable without causing significant negative impacts or consequences
MTTR
metric used to measure the average time it takes to repair or recover from a system failure or incident and restore it to normal operational status
LACP
protocol used in computer networking to facilitate the automatic configuration and management of link aggregation between network devices
Link Aggregation Control Protocol
protocol used in computer networking to facilitate the automatic configuration and management of link aggregation between network devices
Encapsulation error
refers to a mismatch or inconsistency in the data link layer encapsulation protocol used between two connected devices. It occurs when the encapsulation settings on both ends of a link are not properly synchronized, resulting in a failure to establish a functional connection
Encapsulation protocol
refers to the method or format used to encapsulate data within a communication protocol at a specific layer of the OSI (Open Systems Interconnection) model or TCP/IP protocol suite. Encapsulation involves wrapping data with header and, in some cases, trailer information to enable its transmission over a network
DLP
set of rules and guidelines implemented by an organization to protect sensitive or confidential data from unauthorized access, leakage, or loss
Line Protocol
set of rules and procedures used to establish and maintain communication between network devices over a physical or logical communication link. It governs the format and behavior of data transmission on the link, ensuring proper signaling and synchronization between the connected devices
Link state
status or operational state of a network link or interface. It indicates whether a particular link is up and functioning or down and inactive. The link state information is crucial for switches to determine the connectivity and availability of network devices or other switches connected to their interfaces
Diverse paths
the use of multiple routes to establish network connectivity between two points provides fault tolerance by ensuring that if one path becomes unavailable the traffic can be automatically rerouted through an alternative path
CRC
type of checksum algorithm commonly used for error detection in data transmission. It is a more sophisticated and robust method compared to simple checksums, as it provides better error detection capabilities
Runts
undersized packets or frames that are received by a network device. A runt is a term used to describe a data packet or frame that is smaller than the minimum required size specified by the network protocol
