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SEC+ 601 Blitz CRYPTO & PKI Flashcards | StudBud
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SEC+ 601 Blitz CRYPTO & PKI
SEC+ 601 Blitz CRYPTO & PKI
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1
What is the principal use of symmetric encryption?
Integrity
Key Exchange
Confidentiality
Obfuscation
2
What type of high assurance X.509 certificate may be used by a banking website?
Extended Validation
Code Signing
Wildcard
Self Signed
3
If
acme.com
needs to host 4 sites with different host names, what is the best choice of certificate to save costs?
Pinned Certificate
Stapled Certificate
Wildcard Certificate
Smartcard Certificate
4
What is the primary use of Asymmetric Encryption? Choose two
Key Exchange
Hashing
Digital Signature
Bulk Encryption
5
You need to complete FDE for all mobile devices within 24 hours, Select the algorithm suitable for FDE?
Hashing
Symmetric
Asymmetric
Key Stretching
6
A competitor pays an internal employee to steal intellectual property by hiding the data in a png image sent as e-mail?
Hashing
Integrity
Steganograhy
Breach of Trust
7
What will prevent a hacker from stealing my user password database and performing an offline rainbow table attack?
CCTV
MD5
Key Stretching
AUP
8
You must ‘tag’ each item acquired, document the source, how & when it was collected, where it is stored, who has access?
Legal Hold
Right to Silence
Fifth Ammendment
Order of Volativity
E-Discovery
Chain of Custody
9
How can a company ensure that a 3rd party Cloud provider is not using outdated security technologies?
Right To Audit
Reconnaissance
Surprise Pen Test
Brute Force Password attacks
10
What should we implement to ensure that exposure of a long-term private key won't compromise future sessions? Choose 2
STEGANOGRAPHY
ECDHE
MD5
ECC
DHE
RSA
11
What is it when a client submits an OCSP request, the web server returns the time-stamped response directly?
Caching
Sticking
Stapling
Binding
12
What type of CA should I use if I need certificates for my e-commerce site?
Private
Public
Self Signed
Offline
13
What is used to secure passwords in my Linux shadow file to mitigate the use of offline rainbow tables?
Account Lockout
chili
Salt
Complexity
14
A cipher where the data is encrypted one bit at a time. This is
MOST
suitable for encrypting real-time traffic?
Steganography
Hashing
Stream Cipher
Block Cipher
15
Which
symmetric bulk encryption
cipher is
mandated
to ensure
FISMA
compliance?
DES
AES
ECC
RC4
16
What will Bob use when digitally signing a document, to ensure non-repudiation?
Recipients Public Key
His Public Key
Recipients Private Key
His Private Key
17
What type of control is a biometric enabled access control vestibule, securing access to the datacenter?
Compensating
Preventative
Detective
Corrective
18
What a forensic analyst uses to prove that the data she originally acquired has remained unchanged while in her custody?
Legal hold
Non-repudiation
Chain of custody
Checksums
19
What would be a the most
secure
choice of encryption for VPN connection between Fort Meade and NSA field offices?
3DES CTR
AES256 GCM
AES128 ECB
DES CTR
20
Rather than return a whole CRL, this just communicates the status of the requested certificate?
CRL
Delta Request
Certificate Request
OCSP
21
When a user has their private key compromised, what is the FIRST action that should be taken?
Issue new keys and certificates to the affected user
Publish the private key to a publicly available web server
Delete all copies of the private key
Publish the Public key to the CRL server
22
How should you separate your Nuclear power plant network from your business network?
WiFi
Radiation shields
VLAN
Faraday Cages
Tempest Shielding
Air Gap
23
What does a web site administrator generate to obtain a certificate from a CA?
Certificate Stapling
Online Certificate Status Protocol (OCSP)
Certificate Signing Request (CSR)
Certificate Revocation List (CRL)
24
A
Certificate Signing Request
(
CSR
) is stored in what format?
PFX
PDF
PEM
CER
25
What safeguard can we build into a web application, that protects customers being redirected to fraudulent sites?
Wildcard Certificates
Certificate Pinning
Subject Alternate Names
TLS
26
What is used with PGP/GPG that enables users to trust one another's Public Key, rather than using CAs?
Code signing
Web of Trust
CA Hierarchy
PKI
27
Why should you take your Root CA offline when not in use?
To ensure patching is performed 24/7
To conserve power in the datacenter
To save on expensive licensing commitment
To reduce exposure to possible threat actors
28
After installing a Windows server, a cybersecurity administrator needs to harden it, following security best practices?
Enable Web and FTP services
Enable Guest Account
Use shared accounts and allow USB media
Disable Guest Account
Disable Service Accounts and network services
Harden the server by disabling un-needed services
29
A term used in key management, this refers to archiving a private key (or keys) with a third party?
Key Backups
Key Archive
Key Escrow
Key Storage
30
Which algorithm is vulnerable to collisions?
ECC p256
MD5
SHA256
RSA