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Flashcards

CompTIA

Garret Osgood Inglês 115 flashcards

Flashcards do conjunto (115)

  1. 1What does CompTIA stand for?Computing Technology Industry Association
  2. 2T/F: The CompTIA A+ cert is vendor-specificFalse
  3. 3What are the 2 A+ Exams?220-1101 Core 1 and 220-1102 Core 2
  4. 4What is the maximum amount of questions on the A+ exam?90
  5. 5What are the 4 areas covered in the Core 1 exam?Mobile devices - networking -hardware - virtualization and cloud computing -hardware and network troubleshooting
  6. 6What are the 4 areas covered in the Core 2 exam?Operating systems - security - software troubleshooting - operational procedures
  7. 7T/F: Laptop batteries lose charge capacity over timeTrue
  8. 8What does SODIMM stand for and what is it?Small Outline Dual Inline Memory Module - a small form factor of RAM stick often used in laptops
  9. 9T/F: All laptop memory can be upgradedFalse - some laptop memory modules are soldered onto the motherboard
  10. 10What is the typical form factor size for a laptop harddrive?2.5 inches
  11. 11What is the typical form factor size for a desktop computer harddrive?3.5 inches
  12. 12What is the main difference between traditional Hard Drives (HDD) and Solid State Drives (SSD)?SSDs are much faster because they do not have any moving parts
  13. 13What technology/interface is used for smaller SSDs other than the traditional SATA connection?M.2
  14. 14What are some advantages of using an M.2 SSD?Smaller form factor and no cables
  15. 15What is the maximum speed of an SSD?600 MB per second
  16. 16What is the maximum speed of an M.2 card?4 GB per second
  17. 17What is the maximum capacity of an M.2 SSD?2 TB
  18. 18What are some common laptop OS authentication methods?Password - facial recognition - fingerprint scanner - NFC
  19. 19What is LCD?Liquid Crystal Display - liquid crystals are associated with color filters and use a backlight to produce the image
  20. 20How many LCD types are there and what are they called?TN LCD - IPS LCD - VA LCD
  21. 21What is TN LCD?Twisted Nematic - very fast response times good for games and fast moving graphics. Usually have very bad viewing angles and must be viewed straight on.
  22. 22What is IPS LCD?In Plane Switching - very good color representation and more expensive than TN LCD and is good for lots of graphics
  23. 23What is VA LCD?Vertical Alignment - good color representation. slower response times than TN
  24. 24What is OLED?Organic Light Emitting Diode - type of display that does not use a backlight. instead uses an organic material that creates light when a current is passed through it
  25. 25What are some types of backlights used in LCDs?CCFL (Cold Cathode Flourescent Lamp) - LED (Light Emitting Diode)
  26. 26What is EEPROM and what kind of devices is it usually found in?Electronically Erasable Programmable Read-Only Memory - usually found in USB flash drives
  27. 27What do the A's of the AAA security architecture stand for?Authentication - Authorization - Accounting
  28. 28What is the function of a DNS TXT record?Provides outside services with additional info about a domain - Not used to direct any traffic
  29. 29Which DNS TXT records are used for spam management?SPF DKIM DMARC
  30. 30What does DMARC stand for?Domain-based Message Authentication and Reporting Conformance
  31. 31Which DNS record allows an email recipient to verify the sender domain is actually the sender domain?DKIM
  32. 32What does DKIM stand for?DomainKeys Identified Mail
  33. 33Which DNS record enables signing an outbound email with a digital signature?DKIM
  34. 34Which DNS record is an open standard defining a technical method to prevent email address sender forgery?SPF
  35. 35Which DNS record allows a domain owner to specify which servers are authorized to send mail from the domain?SPF
  36. 36Which DNS record contains instructions for the recipient to handle emails that do not align with the senders mail policies?DMARC
  37. 37What is POP3 used for?Email retrieval
  38. 38NetBIOS is a 'blank' that enables communication between hosts on a LAN?API
  39. 39What protocol allows the NetBIOS services to be used over TCP/IP?NetBT
  40. 40What protocol and version offers improved functionality of the same function as POP3?IMAP4
  41. 41What does CIFS stand for and what protocol is it related to?Common Internet File System - SMB - Server Message Block
  42. 42What are SMB/CIFS used for and which systems are they found on?Sharing devices files and directories. Windows Operating Systems
  43. 43What is the default FTP port?TCP 20
  44. 44What is the default FTP Control Connection port?TCP 21
  45. 45What is the default SSH port?TCP 22
  46. 46What is the default Tenet port?TCP 23
  47. 47Which is encrypted and which is not: Telnet / SSH?SSH is encrypted and Telnet is not. Both are used for remote command line and authentication
  48. 48What is the default SMTP port?TCP 25
  49. 49What is the default DNS port?TCP 53
  50. 50What are the default DHCP ports?TCP 67 and TCP 68
  51. 51What is the default HTTP port?TCP 80
  52. 52What is the default POP3 port?TCP 110
  53. 53What is the default NetBIOS port?137 138 139
  54. 54What is the default IMAP port?TCP 143
  55. 55What is the default port for SNMP Agents to receive requests?UDP 161
  56. 56What is the default port for an SNMP management station to receive notifications from SNMP Agent on?162
  57. 57Which version of SNMP offers encryption and authentication and hashing?SNMPv3
  58. 58What is the default LDAP port?TCP 389
  59. 59What is the default HTTPS port?TCP 443
  60. 60What is the default port for SMB/CIFS?TCP 445
  61. 61What is the default port for RDP?TCP 3389
  62. 62What are some connectionless protocols (UDP)?DHCP - TFTP
  63. 63What are some connection oriented protocols (TCP)?SSH - HTTP - HTTPS
  64. 64File Transfer and Email communication and Web browsing make use of either TCP or UPD - which one is it?TCP
  65. 65Video conferencing and Live streaming and Online gaming and VoIP make use of either TCP or UPD - which one is it?UDP
  66. 66An infrastructure device designed for connecting wireless/wired client devices to a network is commonly referred to as a(n)?Access Point
  67. 67A software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?Firewall
  68. 68What does SDN stand for?Software Defined Networking
  69. 69What kind of fiber-optic equipment can be found at a demarc?ONT
  70. 70What is a demarc?A demarcation point is the physical point where a service providers equipment connects with your own.
  71. 71T/F The IEEE 802.3bt standard implements POE and POE+?False
  72. 72T/F The IEEE 802.3bt standard implements POE++ and 4PPOE?True
  73. 73Which IEEE standard implements PoE+?IEEE 802.3at
  74. 74Which device is a designed and dedicated to supply power other Ethernet cabling?Injector
  75. 75What does BitLocker encrypt?Entire hard drive
  76. 76What is PPTP?Point-To-Point Tunneling Protocol - Enables secure transfer of data across a VPN tunnel
  77. 77Is SMTP used for sending emails or receiving emails or both sending and receiving emails?Sending only
  78. 78Is POP/IMAP used for sending emails or receiving emails or both sending and receiving emails?Receiving only
  79. 79What is the newest and most secure wireless encryption method?WPA2
  80. 80What is the difference between a Crossover cable and a patch cable?Crossover cable is used to connect two devices of the same type. ex: switch to switch or hub to hub
  81. 81How many layers are in the TCP/IP Model?5
  82. 82How many layers are in the OSI model?7
  83. 83What are the layers in the TCP/IP model?physical - datalink - network - transport - application
  84. 84What are the layers in the OSI model?physical - datalink - network - transport - session - presentation - application
  85. 85What is a MAC address and what does MAC stand for?MAC address is a unique id for a piece of hardware - Media Access Control
  86. 86What else might a MAC address be referred to?Layer 2 address
  87. 87What does TCP/IP stand for?Transmission Control Protocol Internet Protocol
  88. 88What does UDP stand for?User Datagram Protocol
  89. 89What is a loopback address and what is it good for?An IP address that your machine uses to refer to itself via TCP. Useful for diagnosing TCP issues inside your OS.
  90. 90What is the loopback address range?127.0.0.1 through 127.255.255.254
  91. 91What is the range of E class IP addresses?240.0.0.1 through 254.255.255.254
  92. 92What is a VIP?Virtual IP address
  93. 93What does IPv4 stand for?Internet Protocol version 4
  94. 94What is a link-local address?An IP address that your machine has assigned to itself because it cannot reach a DHCP server. Also know as an APIPA - Automatic Private IP Address
  95. 95What is an APIPA?Automatic Private Internet Protocol Address
  96. 96What is a private IP address?An IP address assigned to your device when it cannot reach a DHCP server
  97. 97What is the range of an APIPA?169.254.0.0.0 through 169.254.255.255
  98. 98How many addresses does IPv4 support?4.29 billion
  99. 99What is another name for a private IP address?RFC 1918 IP address
  100. 100What are the 3 private IP ranges?10.0.0.0 - 10.255.255.255. 172.16.0.0 - 172.31.255.255. 192.168.0.0 - 192.168.255.255
  101. 101What is Unicast?When a single device communicates with a one-to-one channel with another single device.
  102. 102What is Broadcast?When a single device sends a piece of information that is visible to all devices on the network.
  103. 103What is the Broadcast Domain?The range that a device can broadcast to: usually the local IP subnet
  104. 104What is Multicast?When a single device sends information that certain devices can receive if they are configured properly.
  105. 105What is Anycast?When a single device communicates to any single device - not just the device it intended to communicate with.
  106. 106How many devices are defined as root DNS servers in the world?13. Though in reality there are thousands.
  107. 107What year was IP created?1993
  108. 108Given the following IP address 10.74.222.11 and using Classful subnetting: what are the 1)Network Address 2)First usable host address 3) Network Broadcast address 4)Last usable host address?1) 10.0.0.0 2) 10.0.0.1 3) 10.255.255.255 4) 10.255.255.254
  109. 109What does CIDR stand for?Classless Inter-Domain Routing
  110. 110What does CIDR notation demonstrate?The number of 1's in the subnet mask.
  111. 111What is the CIDR notation for the subnet mask 255.255.255.192?/26
  112. 112How many binary bits are in a subnet mask?32
  113. 113How many network bits and host bits are in a subnet mask of /26?26 network bits and 6 host bits
  114. 114How do you calculate the number of hosts available on a subnet?raise 2 to the power of the number of host bits in the subnet mask and then subtract 2.
  115. 115How do you calculate the number of available subnets on a network?raise 2 to the power of the number of subnet bits on a network.

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FlashCards sobre CompTIA, criado por Garret Osgood em 28-05-2024.
Criado por
Garret Osgood
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