Q
QUIZERIA
).\n• Solution Breakdown:\n is used for stylesheets; for metadata."}}},{"@type":"Question","name":"Question 8","text":"Which HTML element is used to define a hyperlink to another web page or location?","suggestedAnswer":[{"@type":"Answer","text":""},{"@type":"Answer","text":""},{"@type":"Answer","text":""},{"@type":"Answer","text":""}],"acceptedAnswer":{"@type":"Answer","text":"","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n The (anchor) tag with the 'href' (hypertext reference) attribute creates hyperlinks.\n• Solution Breakdown:\n establishes document relationships (like stylesheets) in the document head."}}},{"@type":"Question","name":"Question 9","text":"Which of the following is the built-in voice-controlled digital assistant introduced with Microsoft Windows 10?","suggestedAnswer":[{"@type":"Answer","text":"Teneo"},{"@type":"Answer","text":"Siri"},{"@type":"Answer","text":"Alexa"},{"@type":"Answer","text":"Cortana"}],"acceptedAnswer":{"@type":"Answer","text":"Cortana","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Cortana is Microsoft's virtual assistant integrated into Windows 10.\n• Solution Breakdown:\n Siri belongs to Apple, Alexa to Amazon, and Google Assistant to Google."}}},{"@type":"Question","name":"Question 10","text":"Which system mode disables all wireless communications (cellular, Wi-Fi, and Bluetooth) on a computer or mobile device?","suggestedAnswer":[{"@type":"Answer","text":"Train Mode"},{"@type":"Answer","text":"Recovery Mode"},{"@type":"Answer","text":"Hibernation Mode"},{"@type":"Answer","text":"Airplane Mode"}],"acceptedAnswer":{"@type":"Answer","text":"Airplane Mode","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Airplane Mode (Flight Mode) turns off all RF transmitters on the device to prevent interference with avionics during flights.\n• Solution Breakdown:\n Users can manually re-enable Wi-Fi or Bluetooth if needed while keeping cellular off."}}},{"@type":"Question","name":"Question 11","text":"Which built-in Microsoft security component provides integrated real-time antivirus and spyware protection in modern Windows?","suggestedAnswer":[{"@type":"Answer","text":"Outlook"},{"@type":"Answer","text":"Windows Defender"},{"@type":"Answer","text":"McAfee"},{"@type":"Answer","text":"Kaspersky"}],"acceptedAnswer":{"@type":"Answer","text":"Windows Defender","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Microsoft Defender Antivirus (formerly Windows Defender) is an integrated antimalware component built directly into Windows 10 and 11.\n• Solution Breakdown:\n McAfee and Kaspersky are third-party security vendors."}}},{"@type":"Question","name":"Question 12","text":"Windows ________ Mode starts the computer in a basic state, using a minimal set of files, device drivers, and core services for troubleshooting.","suggestedAnswer":[{"@type":"Answer","text":"Safe Mode"},{"@type":"Answer","text":"Flight Mode"},{"@type":"Answer","text":"Silent Mode"},{"@type":"Answer","text":"Dark Mode"}],"acceptedAnswer":{"@type":"Answer","text":"Safe Mode","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Safe Mode starts Windows with essential drivers (basic display driver, core system services) to isolate and troubleshoot software conflicts and driver crashes.\n• Solution Breakdown:\n Safe Mode with Networking adds network drivers."}}},{"@type":"Question","name":"Question 13","text":"Which default web browser was introduced with the launch of Windows 10 to succeed Internet Explorer?","suggestedAnswer":[{"@type":"Answer","text":"Microsoft Edge"},{"@type":"Answer","text":"Google Chrome"},{"@type":"Answer","text":"Mozilla Firefox"},{"@type":"Answer","text":"Opera"}],"acceptedAnswer":{"@type":"Answer","text":"Microsoft Edge","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Microsoft Edge was introduced as the default browser in Windows 10 (originally EdgeHTML, later rebuilt on the Chromium open-source engine).\n• Solution Breakdown:\n Internet Explorer was retained for legacy enterprise backward compatibility before retirement."}}},{"@type":"Question","name":"Question 14","text":"Which cloud storage service is integrated natively into Microsoft Windows for backing up and synchronizing user files?","suggestedAnswer":[{"@type":"Answer","text":"Amazon Drive"},{"@type":"Answer","text":"MediaFire"},{"@type":"Answer","text":"Dropbox"},{"@type":"Answer","text":"OneDrive"}],"acceptedAnswer":{"@type":"Answer","text":"OneDrive","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Microsoft OneDrive is Microsoft's file hosting and synchronization service integrated into Windows Explorer and Office 365.\n• Solution Breakdown:\n Google Drive is by Google; iCloud by Apple."}}},{"@type":"Question","name":"Question 15","text":"Which of the following transmission media makes use of four twisted pairs of insulated copper wires?","suggestedAnswer":[{"@type":"Answer","text":"UTP (Unshielded Twisted Pair)"},{"@type":"Answer","text":"Coaxial Cable"},{"@type":"Answer","text":"Infrared"},{"@type":"Answer","text":"Optical Fibre"}],"acceptedAnswer":{"@type":"Answer","text":"UTP (Unshielded Twisted Pair)","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Standard Ethernet twisted pair cables (such as Cat5, Cat5e, Cat6) contain 4 color-coded twisted pairs (8 individual conductors) of insulated copper wire.\n• Solution Breakdown:\n Coaxial uses a single solid core surrounded by shielding, while optical fibre uses glass or plastic strands."}}},{"@type":"Question","name":"Question 16","text":"Which of the following Internet services is responsible for translation of human-readable domain names into corresponding IP addresses?","suggestedAnswer":[{"@type":"Answer","text":"ARP"},{"@type":"Answer","text":"DNS"},{"@type":"Answer","text":"SNMP"},{"@type":"Answer","text":"DHCP"}],"acceptedAnswer":{"@type":"Answer","text":"DNS","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n DNS (Domain Name System) operates as the Internet's directory service, mapping hostnames (e.g. www.example.com) to numeric IP addresses.\n• Solution Breakdown:\n ARP maps IP addresses to MAC addresses; DHCP allocates IP leases."}}},{"@type":"Question","name":"Question 17","text":"In which of the following network types does the 'hidden terminal problem' arise?","suggestedAnswer":[{"@type":"Answer","text":"Wireless Networks"},{"@type":"Answer","text":"Optical Fibre Networks"},{"@type":"Answer","text":"Local Area Network (Wired)"},{"@type":"Answer","text":"Social Networks"}],"acceptedAnswer":{"@type":"Answer","text":"Wireless Networks","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n The hidden node (hidden terminal) problem occurs in wireless networking when a node is visible from a wireless access point (AP), but not from other nodes communicating with that AP.\n• Solution Breakdown:\n CSMA/CA with RTS/CTS (Request to Send / Clear to Send) is used to prevent collisions from hidden terminals."}}},{"@type":"Question","name":"Question 18","text":"What is the total length in bits of an IPv6 address?","suggestedAnswer":[{"@type":"Answer","text":"64 bits"},{"@type":"Answer","text":"16 bits"},{"@type":"Answer","text":"32 bits"},{"@type":"Answer","text":"128 bits"}],"acceptedAnswer":{"@type":"Answer","text":"128 bits","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n IPv4 addresses are 32 bits long (4 octets), whereas IPv6 addresses are 128 bits long (16 bytes), written in 8 groups of 4 hexadecimal digits separated by colons.\n• Solution Breakdown:\n This provides approximately 3.4 x 10^38 unique IP addresses."}}},{"@type":"Question","name":"Question 19","text":"The concept of logical IP addresses belongs to which layer of the ISO-OSI reference model?","suggestedAnswer":[{"@type":"Answer","text":"Session Layer"},{"@type":"Answer","text":"Network Layer"},{"@type":"Answer","text":"Transport Layer"},{"@type":"Answer","text":"Data Link Layer"}],"acceptedAnswer":{"@type":"Answer","text":"Network Layer","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Layer 3 (Network Layer) is responsible for logical addressing (IPv4/IPv6), packet routing, and subnetting across distinct network segments.\n• Solution Breakdown:\n Data Link layer operates with physical MAC addresses (Layer 2)."}}},{"@type":"Question","name":"Question 20","text":"What is the recommended maximum segment length of standard UTP Cat 6 Ethernet cable?","suggestedAnswer":[{"@type":"Answer","text":"112 m"},{"@type":"Answer","text":"84 m"},{"@type":"Answer","text":"90 m"},{"@type":"Answer","text":"100 m"}],"acceptedAnswer":{"@type":"Answer","text":"100 m","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Per IEEE 802.3 and TIA/EIA standards, the maximum allowable channel run for copper twisted-pair cabling (Cat5e/Cat6) in 10BASE-T, 100BASE-TX, and 1000BASE-T is 100 meters (90m solid horizontal + 10m stranded patch cord).\n• Solution Breakdown:\n Beyond 100m, signal attenuation causes frame degradation without repeaters."}}},{"@type":"Question","name":"Question 21","text":"How many usable host IPv4 addresses are there in a subnet with mask 255.255.255.240 (/28)?","suggestedAnswer":[{"@type":"Answer","text":"15"},{"@type":"Answer","text":"16"},{"@type":"Answer","text":"14"},{"@type":"Answer","text":"17"}],"acceptedAnswer":{"@type":"Answer","text":"14","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Subnet mask 255.255.255.240 leaves 4 bits for hosts (32 - 28 = 4). Total addresses = 2^4 = 16.\n• Solution Breakdown:\n Usable host count = 2^H - 2 = 16 - 2 = 14 (subtracting network ID and broadcast address)."}}},{"@type":"Question","name":"Question 22","text":"Which of the following IPv4 address blocks is reserved by IANA for private networks (RFC 1918)?","suggestedAnswer":[{"@type":"Answer","text":"177.94.0.0/16"},{"@type":"Answer","text":"192.168.0.0/16"},{"@type":"Answer","text":"16.24.0.0/16"},{"@type":"Answer","text":"72.68.0.0/16"}],"acceptedAnswer":{"@type":"Answer","text":"192.168.0.0/16","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n RFC 1918 defines three private IPv4 blocks: 10.0.0.0/8 (Class A), 172.16.0.0/12 (Class B), and 192.168.0.0/16 (Class C: 192.168.0.0 - 192.168.255.255).\n• Solution Breakdown:\n These addresses are non-routable on the public internet."}}},{"@type":"Question","name":"Question 23","text":"In which mode of communication can transmission occur in both directions, but only in one direction at any given time?","suggestedAnswer":[{"@type":"Answer","text":"Simplex"},{"@type":"Answer","text":"Half-duplex"},{"@type":"Answer","text":"Half-simplex"},{"@type":"Answer","text":"Full-duplex"}],"acceptedAnswer":{"@type":"Answer","text":"Half-duplex","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n Half-duplex communication allows bidirectional transmission, but only one party can transmit at a time (e.g. Walkie-talkies).\n• Solution Breakdown:\n Simplex is strictly unidirectional, and Full-duplex allows simultaneous bidirectional transmission."}}},{"@type":"Question","name":"Question 24","text":"GSM, UMTS, and LTE are generations and types of which telecommunications technology?","suggestedAnswer":[{"@type":"Answer","text":"Wi-Fi Technologies"},{"@type":"Answer","text":"Optical Fibre Technologies"},{"@type":"Answer","text":"Bluetooth Technologies"},{"@type":"Answer","text":"Cellular Mobile Technologies"}],"acceptedAnswer":{"@type":"Answer","text":"Cellular Mobile Technologies","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n GSM (2G), UMTS (3G), LTE (4G), and 5G NR represent successive generations of global cellular mobile telecommunication standards managed by 3GPP.\n• Solution Breakdown:\n They define wireless radio access and core network architectures for mobile cellular carriers."}}},{"@type":"Question","name":"Question 25","text":"Which of the following wire colors is NOT part of standard 4-pair UTP Ethernet cabling?","suggestedAnswer":[{"@type":"Answer","text":"Orange"},{"@type":"Answer","text":"Green"},{"@type":"Answer","text":"Blue"},{"@type":"Answer","text":"Yellow"}],"acceptedAnswer":{"@type":"Answer","text":"Yellow","answerExplanation":{"@type":"Comment","text":"• Key Concept:\n The 4 standard pairs in T568A/T568B wiring are: Blue/White-Blue, Orange/White-Orange, Green/White-Green, and Brown/White-Brown.\n• Solution Breakdown:\n Yellow is not used in standard 8-conductor UTP Ethernet cabling."}}}]}]}
psychologyPractice Drill
schoolTarget: HPSSC JOA (IT) Post Code 817
boltTimed Exam

HPSSC JOA (IT) Post Code 817 (2021) - Practice Test (Part 2)

styleCard 1 of 60
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HTML - Document Structure
Q1

How many standard heading levels (from highest to lowest importance) are natively supported by HTML?