Card 181
Question
PDF
Answer
Portable Document Format.
Type of file for documents.
Attackers have embedded malware in
PDFs.
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 182
Question
PEAP
Answer
Protected Extensible Authentication Protocol.
PEAP provides an extra layer of protection
for EAP and it is sometimes used with 802.1x.
PEAP requires a certificate on the 802.1x server.
See also EAP-TTLS and EAP-TLS.
Card 183
Question
PED
Answer
Personal Electronic Device.
Small devices such as cell phones, radios, CD players, DVD players, video cameras, and MP3 players.
Card 184
Question
PGP
Answer
Pretty Good Privacy.
Commonly used to secure email communications between two private
individuals but is also used in companies.
It provides confidentiality, integrity, authentication, and non-repudiation.
It can digitally sign and encrypt email.
It uses both asymmetric and symmetric
encryption.
Card 185
Question
PII
Answer
Personally Identifiable Information.
Information about individuals that can be used to trace a person’s identity, such as a full name, birth date, biometric data, and identifying numbers such as a Social Security number (SSN).
Organizations have an obligation to protect PII and often identify procedures for handling and retaining PII in data policies such as encrypting it.
Card 186
Question
PIN
Answer
Personal identification number.
A number known by a user and entered for authentication.
PINs are often combined with smart cards to provide dual-factor authentication.
Card 187
Question
PIV
Answer
Personal Identity Verification card.
A specialized type of smart card used by U.S. federal agencies.
It includes photo identification and provides confidentiality, integrity, authentication, and
non-repudiation for the users.
It is similar to a CAC.
Card 188
Question
PKI
Answer
Public Key Infrastructure.
Group of technologies used to request, create, manage, store, distribute, and revoke digital certificates.
Certificates include public keys along with details on the owner of the certificate, and on the CA that issued the certificate.
Certificate owners share their
public key by sharing a copy of their certificate.
A PKI requires a trust model between CAs and most trust models are hierarchical and centralized with a central root CA.
Card 189
Question
POP3
Answer
Post Office Protocol v3.
Used to transfer email from mail servers to clients.
POP3 uses TCP port 110.
Card 190
Question
POTS
Answer
Plain old telephone service.
Voice-grade telephone service using traditional telephone wires.
Card 191
Question
PPP
Answer
Point-to-Point Protocol.
Used to create remote access connections.
Used by PAP and CHAP.
Card 192
Question
PPTP
Answer
Point-to-Point Tunneling Protocol.
Tunneling protocol used with VPNs.
PPTP uses TCP port 1723.
Card 193
Question
PSK
Answer
Preshared key.
A secret shared among different systems.
Wireless networks support Personal
mode, where each device uses the same PSK.
In contrast, Enterprise mode uses an 802.1x or RADIUS server for authentication.
Card 194
Question
PTZ
Answer
Pan tilt zoom.
Refers to cameras that can pan (move left and right), tilt (move up and down),
and zoom to get a closer or a wider view.
Card 195
Question
RA
Answer
Recovery agent.
A designated individual who can recover or restore cryptographic keys.
In the context of a PKI, a recovery agent can recover private keys to access encrypted data, or in some situations, recover the data without recovering the private key.
In some cases, recovery agents can recover the private key from a key escrow.
Card 196
Question
RADIUS
Answer
Remote Authentication Dial-In User Service.
Provides central authentication for remote
access clients.
RADIUS uses symmetric encryption to encrypt the password packets and it uses UDP.
In contrast, TACACS+ encrypts the entire authentication process and uses TCP.
Diameter is an improvement over RADIUS.
Card 197
Question
RAID
Answer
Redundant array of independent (or inexpensive)
disks.
Multiple disks added together to increase
performance or provide protection against faults.
RAID help prevent disk subsystems from being a single point of failure.
Card 198
Question
RAID 0
Answer
Disk striping.
RAID-0 improves performance, but does not provide fault tolerance.
Card 199
Question
RAID 1
Answer
Disk mirroring.
RAID-1 uses two disks and provides fault tolerance.
Card 200
Question
RAID 5
Answer
Disk striping with parity.
RAID-5 uses three or more disks and provides fault tolerance.
It can survive the failure of a single drive.
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