CompTIA Network+ Practice Question Answers
نمونه سوالات امنیت شبکه از وب سایت کامپتیا به همراه جواب
Question 1.
Objective: Given a scenario, install and configure routers and switches.
The IEEE standard 802.3af states the specifications for which of the following?
a) Quality of Service
b) VLANs
c) Routing tables
d) Power over Ethernet
Question 2.
Objective: Given a scenario, troubleshoot common router and switch problems.
A user's remote marketing server has changed IP address schemes and now the user can no longer access it. The user further discovers that the distant end still has access to them. Which of the following is a possible cause?
a) SNMP strings need to be added
b) Firewall rules need to be configured
c) Port bonding on the interface needs to be enabled
d) The switch has lost power
Question 3.
Objective: Explain the purpose and features of various network appliances.
Which of the following is a network device that allows remote users access to a network?
a) DNS server
b) Content filter
c) Load balancer
d) VPN concentrator
Question 4.
Objective: Given a scenario, use the appropriate network monitoring resource to analyze traffic.
A technician suspects that a virus has been introduced on the network. Which network resource is BEST used to confirm this problem?
a) Syslog
b) SNMP
c) Network sniffer
d) Environmental monitor
Question 5.
Objective: Given a scenario, implement the following network troubleshooting methodology.
A user reports a network connectivity problem. Which of the following steps should the technician perform FIRST?
a) Determine a probable cause
b) Implement the solution of the cause
c) Test the theory of the cause
d) Identify the problem
Question 6.
Objective: Explain the function of common networking protocols.
Which of the following protocols is used by a web browser to display a web page?
a) SMTP
b) FTP
c) HTTP
d) IMAP4
Question 7.
Objective: Summarize DNS concepts and its components.
Which of the following record types is required for every server in a DNS environment?
a) AAA
b) MX
c) SFP
d) A
Question 8.
Objective: Compare and contrast different wireless standards.
The frequency of the 802.11b and 802.11g is which of the following?
a) 2.4GHz
b) 900MHz
c) 5GHz
d) 1800MHz
Question 9.
Objective: Identify common TCP and UDP default ports.
Which of the following uses port 22 by default?
a) TELNET
b) SSH
c) FTP
d) DNS
Question 10.
Objective: Given a scenario, troubleshoot common wireless problems.
A user is unable to connect to a network with encryption. The user is able to see the network and has the correct passphrase. Which of the following is MOST likely the problem?
a) Encryption type
b) SSID mismatch
c) Standard mismatch
d) Signal strength
Question 11.
Objective: Given a scenario, troubleshoot common physical connectivity problems.
A technician is troubleshooting a UTP cable that has been suspected of having problems due to EMI. Which of the following cables should the technician use without adding new equipment to the network?
a) Singlemode fiber
b) STP
c) Plenum
d) Multimode fiber
Question 12.
Objective: Describe different network topologies.
Which of the following network topologies describes a network where packets of data are transmitted from one computer to another in a circular fashion?
a) Ring
b) Mesh
c) Bus
d) Star
Question 13.
Objective: Given a scenario, troubleshoot common physical connectivity problems.
Which of the following defines the length of time a device retains its IP address for?
a) Scope
b) Reservation
c) Subnet
d) Lease
Question 14.
Objective: Identify virtual network components.
Which of the following virtual devices is the BEST to use to host a company's website?
a) PBX
b) Server
c) Switch
d) Desktop
Question 15.
Objective: Categorize standard media types and associated properties.
A cable standard that includes a fire-retardant jacket is:
a) coaxial cable
b) fiber cable
c) plenum cable
d) UTP cable
Question 16.
Objective: Given a scenario use appropriate hardware tools to troubleshoot connectivity issues .
A new drop is active according to the network administrator. A technician takes a laptop to the new drop to test connectivity and gets an intermittent signal. Which of the following tools could the technician use to test the line?
a) Environmental monitor
b) Toner probe
c) Protocol analyzer
d) Cable tester
Question 17.
Objective: Given a scenario, implement appropriate wireless security measures.
An administrator works for a law firm in an office building in a major city. After installing a new wireless access point, the administrator secures the device using WPA and then connects to it using a laptop. Which of the following would be the logical NEXT step in securing the device?
a) Add a second SSID broadcast to the access point and name it the same as a neighboring company
b) Change the wireless encryption type to WEP
c) Remove the antennas
d) Check neighboring offices for connectivity and reduce the signal strength appropriately
Question 18.
Objective: Given a scenario and a set of requirements, plan and implement a basic SOHO network.
An administrator is asked to set up a home office for a user who would like to connect to the Internet and share files with all six computers in the home. Which of the following are the MINIMUM requirements if the user refuses to install wireless devices and all computers contain working network cards?
a) Hub, Cables, Firewall
b) Firewall, Router, Cables
c) Switch, Firewall, Cables
d) Router, Switch, Cables
Question 19.
Objective: Given a scenario use appropriate software tools to troubleshoot connectivity issues.
The command netstat –n will display which of the following?
a) Ethernet statistics
b) IP address
c) Address and port numbers in numerical form
d) Protocol statistics
Question 20.
Objective: Identify components of wiring distribution.
A business has expanded to additional floors in the building. The expansion only calls for switches and patch panels to be installed. Which of the following would the network manager need to locate?
a) MDF
b) Demarc
c) Smart jack
d) IDF
Question 21.
Objective: Given a scenario, install and configure a wireless network.
A network administrator needs to implement a new wireless network for a coffee shop. The shop wants to allow users wireless access from anywhere in the shop, but not outside. Which of the following should be the GREATEST concern for the administrator?
a) Channel
b) Compatibility
c) WAP placement
d) Interference
Question 22.
Objective: Given a scenario, troubleshoot common router and switch problems.
A user receives an information message on their computer stating a duplicate address exists. A technician would discover that which of the following is true?
a) Wrong gateway
b) Evil twin
c) IP address conflict
d) Wrong subnet mask
Question 23.
Objective: Compare the layers of the OSI and TCP/IP models.
Which of the following layers is the presentation layer?
a) Layer 3
b) Layer 5
c) Layer 6
d) Layer 7
Question 24.
Objective: Explain the purpose and properties of routing and switching.
When differentiating hubs from switches, which of the following is FALSE?
a) Hubs have multiple collision domains.
b) Switches have multiple collision domains.
c) Switches have a single broadcast domain.
d) Hubs have a single broadcast domain.
Question 25.
Objective: Categorize standard connector types based on network media.
Which of the following connector types are MOST commonly associated with phone jacks?
a) RJ-11
b) ST
c) RJ-45
d) SC
Question 26.
Objective: Compare and contrast different wireless standards.
Which of the following 802.11 channels operates above 5GHz?
a) a
b) b
c) g
d) i
Question 27.
Objective: Compare and contrast different LAN technologies.
Which of the following allows the LONGEST distance using single-mode fiber?
a) 10GBaseSR
b) 10GBaseER
c) 10GBaseSW
d) 10GBaseLW
Question 28.
Objective: Given a scenario, install and configure routers and switches.
A switch can separate different subnets by configuring:
a) VTP on each switch
b) trunking on all ports
c) VLANs throughout the ports
d) STP on the main ports
Question 29.
Objective: Classify how applications, devices, and protocols relate to the OSI model layers.
At which of the following layers does the HTTP protocol operate?
a) Layer 1
b) Layer 4
c) Layer 5
d) Layer 7
Question 30.
Objective: Categorize WAN technology types and properties.
Which of the following WAN technology types provides the FASTEST speeds?
a) OC3
b) SDSL
c) ADSL
d) T3
