Card 261
Question
TGT
Answer
Ticket Granting Ticket.
Used with Kerberos.
A KDC (or TGT server) issues timestamped
tickets that expire after a certain time period.
Security+ Abkürzungen (CompTIA) mit Erklärungen
Discover Security+ Abkürzungen (CompTIA) mit Erklärungen: 302 flashcards with questions and answers.
- Subject
- Sciences / Computer science
- Language of creation
- English
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Cards in this set
Card 262
Question
TKIP
Answer
Temporal Key Integrity Protocol.
Wireless security protocol introduced to address the problems with WEP.
TKIP was used with WPA but has been deprecated.
WPA2 with CCMP is recommended instead.
Card 263
Question
TLS
Answer
Transport Layer Security.
Used to encrypt data in transit.
TLS is the replacement for SSL and
like SSL, it uses certificates issued by CAs.
PEAP-TLS uses TLS to encrypt the authentication process and PEAP-TLS requires a CA to issue certificates.
Card 264
Question
TOTP
Answer
Time-based One-Time Password.
Similar to HOTP, but it uses a timestamp instead of a counter.
One-time passwords created with TOTP expire after 30 seconds.
Card 265
Question
TPM
Answer
Trusted Platform Module.
A hardware chip on the motherboard included on many newer laptops.
A TPM includes a unique RSA asymmetric key, and when first used, creates a storage root key.
TPMs generate and store other keys used for encryption, decryption, and authentication.
TPM provides full disk encryption.
Card 266
Question
TSIG
Answer
Transaction Signature.
A method of securely providing updates to DNS with the use of authentication.
Card 267
Question
UAT
Answer
User Acceptance Testing.
One of the last phases of testing an application before its release.
Card 268
Question
UDP
Answer
User Datagram Protocol.
Used instead of TCP when guaranteed delivery of each packet is not necessary.
UDP uses a best-effort delivery mechanism.
Card 269
Question
UEFI
Answer
Unified Extensible Firmware Interface.
A method used to boot some systems and intended to replace Basic Input/Output System (BIOS) firmware.
Card 270
Question
UPS
Answer
Uninterruptible power supply.
A battery backup system that provides fault tolerance for power and can protect against power fluctuations.
A UPS provides short-term power giving the system enough time to shut down smoothly, or to transfer to generator power.
Generators provide long-term power in extended outages.
Card 271
Question
URI
Answer
Uniform Resource Identifier.
Used to identify the name of a resource and always includes the protocol such as http://GetCertifiedGetAhead.com.
Card 272
Question
URL
Answer
Uniform Resource Locator.
A type of URI.
Address used to access web resources, such as http://GetCertifiedGetAhead.com.
Pop-up blockers can include URLs of sites where pop-ups are allowed.
Card 273
Question
USB
Answer
Universal Serial Bus.
A serial connection used to connect peripherals such as printers, flash
drives, and external hard disk drives.
Data on USB drives can be protected against loss of confidentiality with encryption. Attackers have spread malware through Trojans.
Card 274
Question
UTM
Answer
Unified threat management.
A security appliance that combined multiple security controls into a single solution.
UTM appliances can inspect data streams for malicious content and often include
URL filtering, malware inspection, and content inspection components.
Card 275
Question
UTP
Answer
Unshielded twisted-pair.
Cable type used in networks that do not have any concerns over EMI, RFI, or cross talk.
If these are a concern, STP is used.
Card 276
Question
VDI
Answer
Virtualization Desktop Infrastructure.
Virtualization software designed to reproduce a desktop operating system as a virtual machine on a remote server.
Card 277
Question
VLAN
Answer
Virtual local area network.
A VLAN separates or segments traffic.
A VLAN can logically group several different computers together, or logically separate computers, without regard to their
physical location.
It is possible to create multiple VLANs with a single switch. You can also create VLANs with virtual switches.
Card 278
Question
VM
Answer
Virtual machine.
A virtual system hosted on a physical system.
A physical server can host multiple VMs as servers.
Virtualization helps reduce the amount of physical equipment required, reducing overall physical security requirements such as HVAC and power.
Card 279
Question
VoIP
Answer
Voice over IP.
A group of technologies used to transmit voice over IP networks.
Vishing is a form of phishing that sometimes uses VoIP.
Card 280
Question
VPN
Answer
Virtual private network.
Provides access to a private network over a public network such as the Internet.
VPN concentrators provide VPN access to large groups of users.
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