Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
An overview of various network devices and their functionalities. It covers topics such as wireless bridges, modems, network cards, firewalls, repeaters, and different types of internet access technologies. The document also discusses computer security concepts like shoulder surfing, zero-day attacks, and botnets. Additionally, it covers display standards, cabling technologies like thunderbolt and firewire, and raid configurations. This comprehensive information can be useful for students studying computer networks, network administration, and cybersecurity, as well as for it professionals looking to expand their knowledge on networking hardware and software.
Typology: Exams
1 / 230
This page cannot be seen from the preview
Don't miss anything!
The main functionality of the Basic Input/Output System (BIOS) is to perform the initial hardware checks after the computer is powered on and start up the operating system. True or False - answer ✅✅True Which of the following resources can be used by an Operating System (OS) to communicate with hardware? (Select 2 answers) Device Manager Secure Shell (SSH) Device drivers
System BIOS Command-Line Interface (CLI) - answer ✅✅Device drivers System BIOS In modern PCs, the procedure of replacing BIOS contents is sometimes referred to as: Hard boot Overclocking Flashing the BIOS Direct memory access (DMA) - answer ✅✅Flashing the BIOS BIOS updates are performed in order to: (Select all that apply) -Repair damaged BIOS -Fix physical hardware faults found in replaceable components inside the computer's case -Provide support for new types of attached hardware -Fix known programming errors discovered in the current BIOS version - answer ✅✅-Repair damaged BIOS
Power failure during BIOS upgrade can be the cause of irreversible damage to the computer system. True or False - answer ✅✅True After a normal system shutdown, when the computer is turned off, contents of the memory used to store BIOS settings are: Erased Retained Stored in a page file Saved on a hard drive - answer ✅✅Retained Which of the acronyms listed below refers to a series of basic hardware diagnostic tests performed by the startup BIOS after the computer is powered on? IDE POTS QoS
POST - answer ✅✅POST After replacing a modular hardware component inside computer case, the updated information about specific parameters of the new device can be stored in: (Select 2 answers) System BIOS Flash memory Startup BIOS Secondary storage CMOS RAM - answer ✅✅Flash memory CMOS RAM After completing the initial diagnostics and assigning system resources, the startup BIOS program checks for information about secondary storage devices that might contain the OS. The list of devices and the order in which they should be checked can be found and arranged in the CMOS setup utility, and this option is commonly referred to as: Boot record
-Getting into the CMOS setup utility and enabling the virtualization technology setting -Safe mode troubleshooting - answer ✅✅-Getting into the CMOS setup utility and enabling the virtualization technology setting The CMOS setup utility can be accessed by pressing: -Reset button on the front panel of a computer case -The key set by the motherboard manufacturer for accessing CMOS setup utility during boot -Del key during boot -F1 key while logged in Windows - answer ✅✅-The key set by the motherboard manufacturer for accessing CMOS setup utility during boot CMOS settings can be set to factory defaults by: (Select all that apply) -Using a jumper that can be found on the motherboard -Changing settings in Windows Device Manager -Reseating the CMOS battery on the motherboard
-Choosing the default configuration option in the CMOS setup utility - answer ✅✅-Using a jumper that can be found on the motherboard -Reseating the CMOS battery on the motherboard -Choosing the default configuration option in the CMOS setup utility Which of the following answers refers to a firmware interface designed as a replacement for BIOS? UEFI ACPI CMOS USMT - answer ✅✅UEFI What kind of user permission restrictions can be set in BIOS? (Select all that apply) -Group Policy settings -Windows User Account Control (UAC) settings -User password required to proceed when the computer is powered on
Administrator Power User - answer ✅✅Supervisor What is LoJack? -Loopback adapter -Security feature used for locating stolen desktops, laptops, or tablets -Connector standard -RJ-11 plug - answer ✅✅-Security feature used for locating stolen desktops, laptops, or tablets Which of the following terms refers to a technology that allows for storing passwords, certificates, or encryption keys in a hardware chip? Access Control List (ACL) Encrypting File System (EFS) User Account Control (UAC) Trusted Platform Module (TPM) - answer ✅✅Trusted Platform Module
While trying to enable the entire drive encryption feature in Windows technician receives the following error message: "A compatible Trusted Platform Module (TPM) Security Device must be present on this computer, but a TPM was not found". Knowing that the system has a TPM chip installed, which of the following steps might help in solving this problem? Re-installation of the OS Enabling the TPM security feature in CMOS setup menu Hard drive replacement Enabling the TPM security feature in Windows Control Panel - answer ✅✅Enabling the TPM security feature in CMOS setup menu Which of the answers listed below describe(s) the features of UEFI? (Select all that apply) -DRM support -GUI mode -Mouse support -Support for hard drives with a maximum of 4 partitions per drive -Secure boot
A UEFI functionality designed to prevent the loading of malware and unauthorized OSs during system start-up is known as: LoJack Bitlocker Secure boot Kerberos - answer ✅✅Secure boot What is the function of a SMTP server? Email handling Serving of web pages Name resolution File storage & sharing - answer ✅✅Email handling Which of the server types listed below is used for the purpose of verification of the identity of a person or process? Proxy server DNS server
Authentication server Web server - answer ✅✅Authentication server The term "Unified Threat Management" (UTM) refers to a network security solution (commonly in the form of a dedicated device called UTM appliance) which combines the functionality of a firewall with additional safeguards such as for example URL filtering, spam filtering, gateway antivirus protection, intrusion detection or prevention, content inspection, or malware inspection. True or False - answer ✅✅True The term "Intrusion Detection System" (IDS) refers to a device or software application designed to detect malicious activities and violations of security policies on a network and/or computer host. An IDS designed to monitor networks is known as Network Intrusion Detection System (NIDS), an IDS installed on a particular host monitoring only that host is called Host Intrusion Detection System (HIDS). IDSs do not take any active steps to prevent or stop the intrusion relying only on passive response which may include sending an alert to a management console or saving information about the event in logs.
Which of the following statements describe(s) the characteristic features of open-source applications? (Select all that apply) -Proprietary software -Permission to modify and redistribute the application -Free access to the application code -Permission to use the application only under certain conditions -Lack of free access to the application code - answer ✅✅- Permission to modify and redistribute the application -Free access to the application code Windows Phone, iOS, and Android are all examples of closed-source operating systems. True or False - answer ✅✅False Mobile apps for iOS are available for purchase and download through which of the following online marketplaces? Amazon Appstore
App Store Windows Marketplace for Mobile Google Play - answer ✅✅App Store Which of the marketplaces listed below offer(s) apps for Android-based devices? (Select all that apply) App Store Google Play Windows Marketplace for Mobile Amazon Appstore - answer ✅✅Google Play Modern mobile devices have the capability to present landscape or portrait views of the device's screen based on the way the device is being held. Which of the following built-in functionalities allows for determining screen orientation in those devices? Hypervisor Geotracking Accelerometer Gyroscope - answer ✅✅Accelerometer
Capacitive touchscreen displays are composed of two flexible sheets coated with a resistive material and separated by an air gap or microdots. Pressure applied to the surface of the display by a finger or stylus causes the layers to touch, which completes electrical circuits and tells the device where the user is touching. As such, capacitive touchscreens require much more pressure to activate than resistive touchscreens as well as periodic screen calibration in order to be able to register the exact touch location. True or False - answer ✅✅False A procedure of identifying someone's physical location by obtaining GPS data from their mobile device or other GPS-enabled devices is known as: Geotagging Wireless survey Geotracking Tethering - answer ✅✅Geotracking Which of the solutions listed below was designed to alleviate cellular network coverage problems?
Wi-Fi Calling Voice over IP (VoIP) Route aggregation Quality of Service (QoS) - answer ✅✅Wi-Fi Calling A type of mobile user interface presenting the main view of the device with a group of shortcut icons to apps is known as: Title screen Launcher Virtual assistant Desktop - answer ✅✅Launcher Which of the following acronyms refers to a set of tools used for developing applications for a specific platform? GUI SDLC API SDK - answer ✅✅SDK
