Networking - Chapter 11: Network Operations and Management
Which of the following is true about a community string? A. A community string identifies devices under the same administrative control. B. A string is a password. C. A string cannot limit access. D. Devices with different community names are able to send SNMP messages to each other.
A. A community string identifies devices under the same administrative control.
Which of the following pieces of information are you MOST likely to find in a policy document? A. A requirement for using encrypted communications for web transactions B. Average performance statistics for a router C. Steps for completing and validating nightly backups D. The IP address assigned to a router interface
A. A requirement for using encrypted communications for web transactions
You manage your company's website, which uses a cluster of two servers with a single shared storage device. The shared storage device uses a RAID 1 configuration. Each server has a single connection to the shared storage and a single connection to your ISP. You want to provide redundancy so that a failure on a single component doesn't cause the website to become unavailable. What should you add to your configuration to accomplish this? A. Connect one server to the internet through a different ISP. B. On each server, add a second network connection to the internet. C. On each server, add a second network connection to connect the server to the shared storage device. D. On each server, add a second network connection to connect the server to the shared storage device.
A. Connect one server to the internet through a different ISP.
Which of the following conditions can low humidity result in? A. Electrostatic discharge B. Warm air C. Condensation D. Cold air
A. Electrostatic discharge
Which of the following is the term for a calculation of how often bits are damaged in transit due to electromagnetic interference? A. Error rate B. Latency C. Bandwidth D. Bottleneck
A. Error rate
You are the desktop administrator for your company. You would like to manage the computers remotely using a tool with a graphical user interface (GUI). Which actions should you take to accomplish this? (Select two. Each answer is a possible solution.) A. Establish a Remote Desktop connection to each computer. B. Send an assistance invitation. C. Use Telnet to connect to each computer. D. Open Computer Management and connect to each remote computer. E. Run Remote Shell to manage each computer.
A. Establish a Remote Desktop connection to each computer. D. Open Computer Management and connect to each remote computer.
You are adding a new rack to your data center, which will house two new blade servers and a new switch. The new servers will be used for virtualization. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to configure a trunk port on each switch and connect them with a straight-through UTP cable that will run across the floor of the data center. To protect equipment from power failures, you also plan to install a UPS on the rack along with redundant power supplies for the server. Will this configuration work? A. No, you should not run a cable across the data center floor. B. No, you must use a cross-over cable to connect the two switches together. C. No, you must implement the UPS and power supplies on the rack externally. D. No, you should not use blade servers for virtualization. E. Yes, this configuration complies with data center best practices.
A. No, you should not run a cable across the data center floor.
Which of the following is a contract in which both parties agree not to share proprietary or confidential information gathered during the business relationship? A. Non-Disclosure Agreement B. Memorandum of Understanding C. Non-Compete Agreement D. Service Level Agreement
A. Non-Disclosure Agreement
Your network performs a full backup every night. Each Sunday, the previous night's backup tape is archived. On a Wednesday morning, the storage system fails. How many restore operations would you need to perform to recover all of the data? A. One B. Two C. Three D. Four
A. One
You are in the middle of a big project at work. All of your work files are on a server at the office. You want to be able to access the server desktop, open and edit files, save the files on the server, and print files to a printer that's connected to a computer at home. Which protocol should you use? A. RDP B. FTP C. SSH D. Telnet
A. RDP
Of the following restoration processes, which would result in the fastest restoration of all data if a system failure occurred on Friday? A. Restore the full backup from Sunday and the last differential backup. B. Restore the full backup from Sunday and all differential backups. C. Restore the full backup from Sunday and all incremental backups. D. Restore the full backup from Sunday and the last incremental backup.
A. Restore the full backup from Sunday and the last differential backup.
Which of the following improvements to SNMP are included in version 3? (Select two.) A. SNMP message encryption B. Ports 160 and 161 usage C. Agent and manager authentication D. SNMP data transfer through SFTP E. Community name hashing
A. SNMP message encryption C. Agent and manager authentication
Which of the following could be to blame if your computer is regularly crashing or restarting? A. The processor is too hot. B. You don't have enough memory. C. You've run out of bandwidth. D. You're dropping packets.
A. The processor is too hot.
Which of the following ensures that power is supplied to a server or device during short power outages? A. Uninterruptible power supply B. Line conditioner C. Surge protector D. Backup generator
A. Uninterruptible power supply
Your computer seems to be running slowly. In particular, you notice that the hard drive activity light remains lit when you run multiple applications and switch between open windows. This happens even though you aren't saving large files. What should you do to troubleshoot the problem? A. Use Resource Monitor to monitor memory utilization. B. Use Resource Monitor to monitor disk activity. C. Use Reliability Monitor to monitor system reliability. D. Use Task Manager to monitor disk activity.
A. Use Resource Monitor to monitor memory utilization.
Listen to exam instructions You are the network administrator for a growing business. When you were hired, the organization was small, and only a single switch and router were required to support your users. During this time, you monitored log messages from your router and switch directly from each device's console. The organization has grown considerably in recent months. Now you manage eight individual switches and three routers. It's becoming more and more difficult to monitor these devices and stay on top of issues in a timely manner. What should you do? A. Use Syslog to implement centralized logging. B. Use a remote access utility, such as SSH, to access router and switch consoles remotely. C. Hire additional resources to help monitor and manage your network infrastructure. D. Consolidate network resources down to one or two switches.
A. Use Syslog to implement centralized logging.
Which of the following remote protocols was originally designed for UNIX? A. VNC B. ICA C. VPN D. RDP
A. VNC
Which type of documentation would you consult to find the location of RJ45 wall jacks and their endpoints in the intermediate distribution closet? A. Wiring schematic B. Procedure C. Policy D. Baseline
A. Wiring schematic
Which of the following is true about processor performance? A. Processor utilization is the amount of time the processor spends on idle tasks. B. A healthy system's CPU utilization should average around 40%. C. If a processor utilization is consistently high, your system is performing well. D. Utilization spikes as long as an application is open.
B. A healthy system's CPU utilization should average around 40%.
Which of the following describe a system image backup? A. A system image only contains the operating system, installed programs, drivers, and user profile settings. B. A system image contains everything on the system volume, including the operating system, installed programs, drivers, and user data files. C. A system image includes only specified files and folders backed up to a compressed file. D. A system image does not include operating system files, program files, encrypted files, files in the Recycle Bin, user profile settings, or temporary files.
B. A system image contains everything on the system volume, including the operating system, installed programs, drivers, and user data files.
Which of the following defines an Acceptable Use Agreement? A. A legal contract between the organization and the employee that specifies that the employee is not to disclose the organization's confidential information. B. An agreement that identifies the employees' rights to use company property, such as internet access and computer equipment, for personal use. C. An agreement that prohibits an employee from working for a competing organization for a specified time after the employee leaves the organization. D. An agreement that outlines the organization's monitoring activities.
B. An agreement that identifies the employees' rights to use company property, such as internet access and computer equipment, for personal use.
Some users report that frequent system crashes have started happening on their workstations. Upon further investigation, you notice that these users all have received a recent update to the same application. Where would you go to conduct a root cause analysis? A. Security log B. Application log C. Network log D. Firewall log
B. Application log
You are using a protocol analyzer to capture network traffic. You want to only capture the frames coming from a specific IP address. Which of the following can you use to simplify this process? A. Display filters B. Capture filters C. Switch D. NIC
B. Capture filters
Which of the following information are you MOST likely to find in a procedure document? A. A record of the repairs made to a specific device B. Details on how to test and deploy patches C. The relationship of routers to other routers on the network D. An inventory of the hardware components inside a specific device
B. Details on how to test and deploy patches
Which backup strategy backs up only files that have the archive bit set and does not mark them? A. Incremental B. Differential C. Full D. Normal
B. Differential
You suspect that a bad video driver is causing a user's system to randomly crash and reboot. Where would you go to identify and confirm your suspicions? A. Application logs B. Dump files C. SIP logs D. Syslog
B. Dump files
A web server on your network hosts your company's public website. You want to make sure that a NIC failure on the server does not prevent the website from being accessible on the internet. Which solution should you implement? A. QoS B. Ethernet bonding C. Traffic shaping D. Spanning Tree
B. Ethernet bonding
You have been using SNMP on your network for monitoring and management, but you're concerned about the security of this configuration. What should you do to increase security in this situation? A. Implement a RADIUS solution B. Implement version 3 of SNMP C. Use SSH instead of SNMP D. Combine SNMP with SSL
B. Implement version 3 of SNMP
When packets arrive at their destination at different speeds, they sometimes arrive out of order. What does this cause? A. Latency B. Jitter C. Dropped packets D. Error rates
B. Jitter
Which Syslog level indicates an emergency that could severely impact the system and cause it to become unusable? A. Level 2 B. Level 0 C. Level 6 D. Level 4
B. Level 0
What is the name of the computer that queries agents and gathers responses by sending messages? A. Trap B. Manager C. MIB D. Agent
B. Manager
Which of the following provides information on the subnets within your network, including the subnet addresses and the routers connecting each subnet? A. Floor plan B. Network diagram C. Wiring diagram D. Rack diagram
B. Network diagram
Your 24U rack currently houses two 4U server systems. To prevent overheating, you've installed a rack-mounted environmental monitoring device within the rack. Currently, the device shows that the temperature within the rack is 70 degrees Fahrenheit (21 degrees Celsius). What should you do? A. Install a humidifier to increase the humidity within the server room. B. Nothing, the temperature within the rack is within acceptable limits. C. Reorient the cold aisle within the server room so that it is directed toward the air conditioner's return duct. D. Install an additional air conditioning unit for the server room.
B. Nothing, the temperature within the rack is within acceptable limits.
Listen to exam instructions You want to know which protocols are being used on your network. You'd like to monitor network traffic and sort traffic by protocol. Which tool should you use? A. IDS B. Packet sniffer C. IPS D. Port scanner E. Throughput tester
B. Packet sniffer
You decide to use a packet sniffer to identify the type of traffic sent to a router. You run the packet sniffing software on a device that's connected to a hub with three other computers. The hub is connected to a switch that's connected to the router. When you run the software, you see frames addressed to the four workstations but not to the router. Which feature should you configure on the switch? A. Promiscuous mode B. Port mirroring C. Bonding D. Spanning Tree Protocol
B. Port mirroring
Which of the following is a protocol used for terminal emulation? A. VNC B. SSH C. ICA D. RDP
B. SSH
Which of the following is a standard for sending log messages to a central logging server? A. OVAL B. Syslog C. LC4 D. Nmap
B. Syslog
What is the definition of bandwidth? A. The calculation of how often bits are damaged in transit due to electromagnetic interference. B. The amount of data that can be transferred from one place to another in a specific amount of time. C. The condition that occurs when a system is unable to keep up with the demands placed on it. D. The speed at which packets travel from source to destination and back.
B. The amount of data that can be transferred from one place to another in a specific amount of time.
Why should you store backup media off site? A. To comply with government regulations B. To prevent the same disaster from affecting both the network and the backup media C. To make the restoration process more efficient D. To reduce the possibility of theft
B. To prevent the same disaster from affecting both the network and the backup media
Your network uses the following backup strategy. You create: Full backups every Sunday night. Differential backups Monday night through Saturday night. On Thursday morning, the storage system fails. How many restore operations would you need to perform to recover all of the data? A. One B. Two C. Three D. Four
B. Two
You manage a server at work that has just been configured with a new application. Consequently, the server has crashed several times during the last week. You think that you've resolved the problem, but you'd like to be able to manage the server remotely just in case more issues occur. Which of the following protocols should you use for remote management? (Select two.) A. PPP B. VNC C. PPTP D. L2TP E. ICA
B. VNC E. ICA
Which of the following is the term for when a system is unable to keep up with the demands placed on it? A. Jitter B. Latency C. Bottleneck D. Hard fault
C. Bottleneck
In business continuity planning, what is the primary focus of the scope? A. Recovery time objective B. Company assets C. Business processes D. Human life and safety
C. Business processes
You plan to implement a new security device on your network. Which of the following policies outlines the process you should follow before you implement that device? A. Service Level Agreement B. Acceptable Use C. Change Management D. Resource Allocation
C. Change Management
Which of the following is a best practice when establishing a baseline? A. Establish baselines within a network or device's first week of installation. B. Establish baselines only during the busiest times of the day. C. Determine baselines over time by analyzing network traffic. D. Establish baselines using only specialized tools.
C. Determine baselines over time by analyzing network traffic.
Which of the following provides a layout of all electrical, plumbing, HVAC, and networking wiring and components? A. Rack diagram B. Network diagram C. Floor plan D. Wiring diagram
C. Floor plan
Which backup strategy backs up all files from a computer's file system (regardless of whether the file's archive bit is set or not) and then marks them as backed up? A. Incremental B. Copy C. Full D. Differential
C. Full
Most equipment is cooled by bringing cold air in the front and ducting the heat out the back. What is the term for where heat is sent? A. Cold aisle B. Back aisle C. Hot aisle D. Front aisle
C. Hot aisle
You have purchased a solar backup power device to provide temporary electrical power to critical systems in your data center should the power provided by the electrical utility company go out. The solar panel array captures sunlight, converts it into direct current (DC), and stores it in large batteries. The power supplies on the servers, switches, and routers in your data center require alternating current (AC) to operate. Which electrical device should you implement to convert the DC power stored in the batteries into AC power that can be used in the data center? A. Transformer B. Capacitor C. Inverter D. Transistor
C. Inverter
Which of the following devices accepts incoming client requests and distributes those requests to specific servers? A. Caching engine B. CSU/DSU C. Load balancer D. Media converter
C. Load balancer
Which of the following are backed up during a differential backup? A. Only files that have been added since the last full or incremental backup. B. Only files that have changed since the last full or incremental backup. C. Only files that have changed since the last full backup. D. Only files that have changed since the last full or differential backup.
C. Only files that have changed since the last full backup.
You maintain the network for an industrial manufacturing company. You're concerned about the dust in the area getting into server components and affecting network availability. Which of the following should you implement? A. UPS B. Backup generator C. Positive pressure system D. Line conditioner E. Negative pressure system
C. Positive pressure system
You want to identify the traffic that is generated and sent through a network by a specific application on a device. Which tool should you use? A. Multimeter B. Certifier C. Protocol analyzer D. Toner probe E. TDR
C. Protocol analyzer
Which of the following is a tool that allows access to the graphical desktop environment of another Windows client system over a network connection? A. Remote Desktop Gateway B. SSH C. Remote Desktop D. VPN
C. Remote Desktop
Which of the following is the least effective power loss protection for computer systems? A. Uninterruptible power supply B. Secondary power source C. Surge protector D. Backup power generator
C. Surge protector
Over the past few days, a server has gone offline and rebooted automatically several times. You would like to see a record of when each of these restarts occurred. Which log type should you check? A. Security B. Performance C. System D. Firewall
C. System
When an event occurs, the agent logs details regarding the event. What is this event called? A. OID B. GET C. Trap D. MIB
C. Trap
You are concerned that an attacker can gain access to your web server, make modifications to the system, and alter the log files to hide his or her actions. Which of the following actions would BEST protect the log files? A. Take a hash of the log files. B. Encrypt the log files. C. Use Syslog to send log entries to another server. D. Configure permissions on the log files to prevent access.
C. Use Syslog to send log entries to another server.
Which SNMP component uses GETNEXT messages to navigate the MIB structure? A. Trap B. Inform C. Walk D. GET
C. Walk
Where can you check your CPU's temperature? A. Performance Manager B. Task Manager C. Device Manager D. BIOS
D. BIOS
You want to make sure that the correct ports on a firewall are open or closed. Which document should you check? A. Wireless site survey B. Intermediate distribution frame C. Wiring schematic D. Baseline configurations
D. Baseline configurations
Which deviation in power is the longest? A. Surge B. Sag C. Transient D. Blackout
D. Blackout
What does SNMP use to identify a group of devices under the same administrative control? A. Passwords B. OID C. Informs D. Community strings
D. Community strings
You suspect that cache poisoning or spoofing has occurred on your network. Users are complaining of strange web results and being redirected to undesirable sites. Which log would help you determine what's going on? A. Security logs B. Application logs C. Network logs D. DNS logs
D. DNS logs
Your network uses the following backup strategy. You create: Full backups every Sunday night. Incremental backups Monday night through Saturday night. On a Thursday morning, the storage system fails. How many restore operations would you need to perform to recover all of the data? A. One B. Two C. Three D. Four E. Five
D. Four
What is the purpose of using Ethernet bonding? (Select two.) A. Provides increased bus speeds B. Increases read and write operations between the system bus and network adapters C. Enables dual remote access (DRA) over a WAN link D. Increases network performance E. Provides a failover solution for network adapters
D. Increases network performance E. Provides a failover solution for network adapters
Which of the following does an agent send to the manager to confirm the receipt of a transmission? A. Alert B. GET C. Walk D. Inform
D. Inform
Which Syslog severity level indicates a debugging message? A. Level 1 B. Level 5 C. Level 3 D. Level 7
D. Level 7
Your disaster recovery plan (DRP) calls for backup media to be stored at a different location. The location is a safe deposit box at the local bank. Because of this, the disaster recovery plan specifies that you must choose a method that uses the least amount of backup media but also allows you to quickly back up and restore files. Which backup strategy would BEST meet the DRP's specifications? A. Perform a full backup once per month and an incremental backup the other days of the month. B. Perform a full backup each day of the week. C. Perform a full backup once per week and an incremental backup the other days of the week. D. Perform a full backup once per week and a differential backup the other days of the week.
D. Perform a full backup once per week and a differential backup the other days of the week.
Which of the following is a role service that allows users with the Remote Desktop Connection client and an internet connection to connect on an internal network. A. RD RAP B. RD CAP C. Remote Desktop D. RD Gateway
D. RD Gateway
Which of the following protocols or services would you associate with Windows Remote Desktop network traffic? A. NNTP B. RD RAP C. WPA D. RDP
D. RDP
In addition to performing regular backups, what must you do to protect your system from data loss? A. Store the backup media in an on-site fireproof vault. B. Write-protect all backup media. C. Restrict restoration privileges to system administrators. D. Regularly test restoration procedures.
D. Regularly test restoration procedures.
Because of an unexplained slowdown on your network, you decide to install monitoring software on several key network hosts to locate the problem. You will then collect and analyze the data from a central network host. Which protocol will the software use to detect the problem? A. IPX B. UDP C. TCP/IP D. SNMP
D. SNMP
Which protocol uses traps to send notifications from network devices? A. IGMP B. SMTP C. ICMP D. SNMP
D. SNMP
Which log file type is one of the most tedious to parse but can tell you exactly when a user logged onto your site and what their location was? A. System logs B. Authentication logs C. Event logs D. Web server logs
D. Web server logs
You are adding a new rack to your data center, which will house two new blade servers and a new switch. The new servers will be used for file storage and a database server. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to configure a trunk port on each switch and connect them with a crossover UTP plenum cable that will run through the suspended tile ceiling in the data center. To provide power for the new devices, you had an electrician install several new 20-amp wall outlets near the new rack. Each device on the rack will be plugged directly into one of these new wall outlets. What is wrong with this configuration? (Select two.) A. You should not run a plenum cable through a suspended tile ceiling. B. You must use a straight-through cable to connect the two switches together. C. You should not connect networking equipment to a 20-amp wall circuit. D. You should implement redundant power supplies for the network devices. E. You should implement a UPS between the wall outlet and the network devices.
D. You should implement redundant power supplies for the network devices. E. You should implement a UPS between the wall outlet and the network devices.
What is the definition of latency? A. The percentage of time that a disk subsystem reads from and writes to a disk. B. The speed at which data packets travel from source to destination and back. C. A calculation of how often bits are damaged in transit due to electromagnetic interference. D. The percentage of available bandwidth being used.
B. The speed at which data packets travel from source to destination and back.
You just deployed a new Cisco router that connects several network segments in your organization. The router is physically located in a server room that requires an ID card for access. You backed up the router configuration to a remote location with an encrypted file. You access the router configuration interface from your notebook computer using a Telnet client with the username admin and the password admin. You used the MD5 hashing algorithm to protect the password. What else should you do to increase the security of this device? (Select two.) A. Use TFTP to back up the router configuration to a remote location. B. Use a web browser to access the router configuration using an HTTP connection. C. Use an SSH client to access the router configuration. D. Change the default administrative username and password. E. Use encrypted Type 7 passwords.
C. Use an SSH client to access the router configuration. D. Change the default administrative username and password.
Which of the following are backed up during an incremental backup? A. Only files that are new since the last full or incremental backup. B. Only files that have changed since the last full backup. C. Only files that have changed since the last full or differential backup. D. Only files that have changed since the last full or incremental backup.
D. Only files that have changed since the last full or incremental backup.
Which port does Remote Desktop use? A. Port 23 B. Port 22 C. Port 135 D. Port 3389
D. Port 3389
