Final Exam ITESS Reviewer (Module 5-7) PDF

**FINAL EXAM ITESS REVIEWER (MODULE 5-7)** **MODULE 5** **Which network device regenerates the data signal without segmenting the network?** - Hub **A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which ne...

**FINAL EXAM ITESS REVIEWER (MODULE 5-7)** **MODULE 5** **Which network device regenerates the data signal without segmenting the network?** - Hub **A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario?** - WAN ** Which network service automatically assigns IP addresses to devices on the network?** - DHCP **Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack?** - IDS **Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.)** - TCP - UDP **Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host?** - PAN **Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)** - 802.11b - 802.11g - 802.11n **What are two common media used in networks? (Choose two.)** - Copper - Fiber **A technician has captured packets on a network that has been running slowly when accessing the internet. Which port number should the technician look for within the captured material to locate HTTP packets?** - 80 **Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN?** - Zigbee **Which technology uses existing electrical wiring to connect devices to a network?** - Ethernet over power **A technician has been asked to assist with some LAN cabling. What are two standards that the technician should research before this project begins? (Choose two.)** - T568A - T568B **A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)** - Switch - Router - Wireless Access Point **Which two devices are commonly powered by PoE? (Choose two.)** - Access Point - IP Phone **Which device acts as a termination point for cable runs and keeps cables secure and safely out of walkways?** - Patch Panel **Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)** - RFI - EMI **Which pairs of wires change termination order between the 568A and 568B standards?** - Green and orange **What is a common function of a proxy server?** - to store frequently accessed web pages on the internal network **Which well-known port number is used by the DHCP (client) protocol?** - 68 **What is the correct order of the layers of the TCP/IP model from the top layer to the bottom?** - application, transport, internet, network access (ATINa) **Which satellite service can support up to approximately 100 Mbps with much lower latency than standard satellite?** - LEO **Which type of server would support the SMTP, POP, and IMAP protocols?** - Email **What type of connector is used to connect an analog modem to a telephone line socket?** - RJ-11 **What is a characteristic of a WAN?** - It connects multiple networks that are geographically separated. **Which IEEE standard is used for PoE?** - 802.3af **Which network device would be the most appropriate to provide stateful packet filtering, email filtering, and VPN services?** - UTM **How many devices can a Bluetooth device connect to simultaneously?** - 7 **Which device provides wireless connectivity to users as its primary function?** - Access Point **A user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?** - DSL Modem **A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?** - The data flow is being tracked based on the source port number that is used by each application. **A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?** - Fiber Optic **What is a feature of a dial-up connection?** - the use of an analog modem to transmit data over voice telephone lines **Which type of server would be used to keep a historical record of messages from monitored network devices?** - Syslog **A client packet is received by a server. The packet has a destination port number of 161. What service application is the client requesting?** - SNMP **A technician is searching through a storage locker and finds a wireless NIC. What is the purpose of this device?** - It is needed to connect a computer or smart device to an 802.11 network. **MODULE 6** **What command can be used to troubleshoot domain name resolution issues?** - nslookup **A technician wishes to update the NIC driver for a computer. What is the best location for finding new drivers for the NIC?** - the website for the manufacturer of the NIC **A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?** - It cannot communicate outside its own network. **A customer has a web server for a small business. The business uses both wired and wireless networking. A Linksys WRT300N wireless router provides wireless and wired connectivity. What firewall option may be enabled in order for customers to gain access to the web server from their remote locations?** - port forwarding **Which protocol dynamically assigns IP addresses to network devices?** - DHCP **Which protocol is used by *ping* to test connectivity between network hosts?** - ICMP **A wireless router is displaying the IP address of 192.168.0.1. What could this mean?** - The wireless router still has the factory default IP address. **What is the problem if a computer automatically configures an IP address in the 169.254.x.x address range?** - The DHCP server is unreachable. **A user reports that the corporate web server cannot be accessed. A technician verifies that the web server can be accessed by its IP address. What are two possible causes of the problem? (Choose two.)** - The DNS server address is misconfigured on the workstation. - The web server information is misconfigured on the DNS server. **A new computer workstation has been installed in a small office. The user of the workstation can print a document using a network printer on the LAN, but cannot access the Internet. What is a possible cause of the problem?** - The gateway IP address is misconfigured. **What is a result when the DHCP servers are not operational in a network?** - Workstations are assigned with IP addresses in the 169.254.0.0/16 network. **A computer has been assigned an IP address of 169.254.33.16. What command initiates the process of requesting a new IP address?** - ipconfig /release **A device has been assigned the IPv6 address of 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64. Which is the network identifier of the device?** - 2001:0db8:cafe:4500 **Which filtering method uses IP addresses to specify allowed devices on your network?** - Whitelisting **What is the best description of NetBIOS?** - It is an obsolete and insecure Windows network protocol. **Which network server is malfunctioning if a user can ping the IP address of a web server but cannot ping the web server host name?** - the DNS server **A wired network is undergoing several changes that could leave it vulnerable to connection by unauthorized devices while the work is in progress. Which two temporary measures would enable the authorized devices to continue to have network access but prevent unauthorized devices from connecting? (Choose two.)** - Disable DHCP - Assign static IP addresses to the authorized devices. **A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?** - The PC default gateway address is missing or incorrect. **The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task?** - DHCP **A PC is not able to connect to a wired network. Pinging the loopback address is successful, but the gateway cannot be reached. On the network switch all the interface lights are on, except for the interface connected to the PC. The LED on the network card is off. What is the most likely cause of this problem?** - The network cable is faulty. **Multiple users report that the workstations are assigned a 169.254.x.x IP address. The users are able to communicate only between each other. What is a possible solution?** - Restart the DHCP server **Port triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 as an open port. What effect does this have on network traffic?** - All traffic that is sent out port 25 will open port 113 to allow inbound traffic into the internal network through port 113. **Which type of network requires an active, powered TAP (test access point) to capture network traffic?** - gigabit Ethernet **What is the proper CIDR prefix notation for a subnet mask of 255.0.0.0?** - /8 **A group of users is unable to connect to the network. When testing several of the PCs and issuing the command *ipconfig*, the technician notices that all of them have an IP address in the 169.254.x.x range. What is the most likely cause of this problem?** - The DHCP server is not operational. **Which network protocol is used to automatically assign an IP address to a computer on a network?** - DHCP **What is the correct compressed format of the IPv6 address 2001:0db8:eeff:000a:0000:0000:0000:0001?** - 2001:db8:eeff:a::1 **What two default wireless router settings can affect network security? (Choose two.)** - The SSID is broadcast. - A well-known administrator password is set. **Which IPv6 address represents the most compressed form of the IPv6 address 2001:0db8:cafe:0000:0835:0000:0000:0aa0/80?** - 2001:db8:cafe:0:835::aa0/80 **Which filtering method uses the physical address to specify exactly which device is allowed or blocked from sending data on a network?** - MAC address filtering **A network technician is checking a computer to see if the DHCP client is working correctly. The technician issues the *ipconfig /all* command. Which two parameters should the technician review? (Choose two.)** - Default gateway - Subnet mask **A workstation has been moved from the first floor to the fifth floor within an organization. The user is now reporting that the workstation cannot connect to the network. A technician suspects that the workstation could not obtain an IP address from a DHCP server. What is a possible cause of the problem?** - The workstation has been configured with a static IP address. **A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?** - The computer cannot communicate with a DHCP server. **Which is an obsolete and insecure Windows network protocol only required on operating systems earlier than Windows 2000?** - NetBIOS **What security technique could provide secure access to a server located in a small office without the expense of implementing a DMZ or purchasing a hardware firewall?** - implement port forwarding **A technician is configuring the channel on a wireless router to either 1, 6, or 11. What is the purpose of adjusting the channel?** - to avoid interference from nearby wireless devices **How many bits are used to represent an IPv6 address?** - 128 **CHECKPOINT MODULE 5 and 6** **The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way for IP configuration of workstations. Which service would simplify the workstation IP configuration task? (Module 6)** - DHCP **A network technician is setting up a wireless access point in the front office of a small company. The technician needs to disable an option on the access point that would allow devices to dynamically add themselves to the network without configuration. Which technology should the technician disable?** - UPnP **A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address? (Module 6)** - It cannot communicate outside its own network. **A small company connects data acquisition equipment to the serial port of a computer. The equipment user has reported that not all data is being received by the computer. A technician wants to check the serial communication between the equipment and the computer. Which tool can the technician use to troubleshoot the serial communication?** - Loopback plug **A small company is upgrading its phone system with IP phones. These phones can be used just by plugging into a network port in the offices. Which technology would support the IP phones?** - Power over ethernet **A user is setting up a home wireless network. Which type of device must the user have in order to establish the wireless network and provide access to the internet for multiple home devices?** - Wireless router **What physical layer medium is used by DSL to provide high-speed data communications?** - Telephone Lines **A technician needs to add a new wireless device to a small WLAN. The WLAN is a mixture of old and newer 802.11b and 802.11g devices. What choice for the new device would provide the most interoperability for present and future growth?** - Add a new 802.11n device. **A technician is setting up a server that requires two connections between the client and the server, one for commands and replies, the other for the actual transfer of files. What type of server will accomplish this task?** - FTP server **Which is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?** - 2001:db8::a0b0:8:1 **MODULE 7** **Which laptop component makes use of throttling to reduce power consumption and heat?** - CPU **Which statement is true of laptop motherboards?** - The form factor varies by manufacturer. **Why are SODIMMs well suited for laptops?** - They have a small form factor. **What two sources of information are used to enable geocaching, geotagging and device tracking on Android and iOS devices? (Choose two.)** - GPS signals - cellular or Wi-Fi network **Which protocol enables mail to be downloaded from an email server to a client and then deletes the email from the server?** - POP3 **Which wireless technology can be used to connect wireless headphones to a computer?** - Bluetooth **Which type of laptop display has components that may contain mercury and use either a CCFL or LED backlight?** - LCD **Which ACPI power state provides power to the CPU and RAM, but powers down unused devices?** - S1 **Which type of media would be used with a card reader attached to a laptop?** - SD **Which laptop part is removed by pressing outwards on clips that hold it into place?** - SODIMM **What is a CRU as it relates to a laptop?** - a part a user can replace **What is used to provide location information to smart devices?** - GPS **A traveling sales representative uses a cell phone to interact with the home office and customers, track samples, make sales calls, log mileage, and upload/download data while at a hotel. Which internet connectivity method would be a preferred method to use on the mobile device due to the low cost?** - Wi-Fi **A technician is trying to determine the cause of a laptop problem. Which of the listed activities is an example of the technician testing a theory?** - The technician uses an AC adapter to power the laptop. **At a conference, a presenter cannot get the laptop to display through the projector and a technician is called. What should the technician try first?** - Use the appropriate **Fn** key to output to the external display. **What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.)** - Wi-Fi - Cellular **What is the purpose of a digitizer in a mobile device?** - to convert user touch actions to digital input signals **Which type of RAM modules are designed for the space limitations of laptops?** - SODIMMs **A technician is troubleshooting a laptop with an unresponsive touchscreen. What could be the probable cause?** - The screen is dirty. **What type of backlight is used in an LED display?** - LED **Which two statements are true of a laptop CPU when compared to a desktop CPU? (Choose two.)** - Laptop CPUs are designed to produce less heat. - Laptop CPUs use smaller cooling devices. **Where is an integrated microphone normally located on a laptop?** - in the top of the display **A technician has been called on site to help a user who has a laptop problem. At which point should the technician look online for additional possible solutions to a laptop problem?** - after testing a theory to determine the cause **Which protocol can be used to transfer messages from an email server to an email client?** - POP3 **To clean laptops, which two products are recommended? (Choose two.)** - Mild cleaning solution - Cotton swabs **What are three common input devices found on laptops? (Choose three.)** - Web camera - Fingerprint reader - Touchpad **A customer brings a laptop into a computer repair shop. The technician can tell that the laptop is powered on by the power light, but nothing displays on the screen. What are two possible issues that could cause this symptom? (Choose two.)** - The laptop has gone into sleep mode. - The screen cutoff switch needs cleaning or is damaged. **Which laptop component is commonly found in the laptop lid?** - Wi-Fi antenna **Which step would be important in the removal of laptop memory?** - Press outward on the clips that hold the memory module. **Which laptop component would be considered an FRU?** - Display **Which specialized mobile device is commonly used with VR and AR?** - Headset **A technician working on a cell phone must provide documentation regarding the phone. Where would the technician find the IMSI information?** - on the SIM card or programmed on the phone **A technician has been asked to decide which laptop components should be cleaned on a monthly basis as part of a maintenance routine. What are two examples of components that should be included? (Choose two.)** - Exterior case - Keyboard **What is a characteristic of laptop motherboards?** - Laptop motherboards are proprietary. ** What could be used in conjunction with a laptop in order to read flash media?** - Card reader **A salesperson wants to embed geographical location metadata onto various media such as photographs and videos. What technology, product, or setting allows this task to be accomplished?** - Geotagging **A technician is working on a laptop and an app is not responding. What is a probable cause for this situation?** - An app needs to be restarted.