Answers Graded A+.
100 - correct answer. Continue
101 - correct answer. Switching Protocols
102 - correct answer. Processing
Internet Protocol Security (IPsec) - correct answer. a secure network protocol suite
that authenticates and encrypts the packets of data sent over an Internet Protocol
network
Internet Protocol Security (IPsec) - correct answer. used in virtual private networks
(VPNs)
number of possible TCP ports - correct answer. 65535
number of possible UDP ports - correct answer. 65535
RFC1918 24-bit block - correct answer. 10.0.0.0/8
RFC1918 20-bit block - correct answer. 172.16.0.0/12
RFC1918 16-bit block - correct answer. 192.168.0.0/16
Common Vulnerabilities and Exposures (CVE) - correct answer. provides a
reference-method for publicly known information-security vulnerabilities and exposures
Common Vulnerability Scoring System (CVSS) - correct answer. an open industry
standard for assessing the severity of computer system security vulnerabilities
DREAD - correct answer. part of a system for risk-assessing computer security
threats
Common Weakness Enumeration (CWE) - correct answer. a category system for
software weaknesses and vulnerabilities
,National Vulnerability Database (NVD) - correct answer. the U.S. government
repository of standards-based vulnerability management data represented using the
Security Content Automation Protocol (SCAP)
500 - correct answer. Internal Server Error
501 - correct answer. Not Implemented
502 - correct answer. Bad Gateway
503 - correct answer. Service Unavailable
504 - correct answer. Gateway Timeout
505 - correct answer. HTTP Version Not Supported
511 - correct answer. Network Authentication Required
CHANGE_ON_INSTALL - correct answer. SYS
MANAGER - correct answer. SYSTEM
TIGER - correct answer. SCOTT
WOOD - correct answer. ADAMS
STEEL - correct answer. JONES
CLOTH - correct answer. CLARK
PAPER - correct answer. BLAKE
TRACE - correct answer. TRACESVR
MANAGER - correct answer. OLAPSYS
CHANGE_ON_INSTALL - correct answer. XDB
400 - correct answer. Bad Request
401 - correct answer. Unauthorized
402 - correct answer. Payment Required
403 - correct answer. Forbidden
, 404 - correct answer. Not Found
405 - correct answer. Method Not Allowed
406 - correct answer. Not Acceptable
407 - correct answer. Proxy Authentication Required
408 - correct answer. Request Timeout
409 - correct answer. Conflict
410 - correct answer. Gone
411 - correct answer. Length Required
413 - correct answer. Payload Too Large
426 - correct answer. Upgrade Required
429 - correct answer. Too Many Requests
threat - correct answer. a source of potential disruption, which has the potential to
cause a risk
risk - correct answer. the combination of consequences of a threat occurring and the
likelihood of it doing so
inherent risk - correct answer. the risk that an event will occur which may negatively
affect the achievement of organisation's objectives, assuming there are no controls in
place
residual risk - correct answer. the risk which remains after taking controls in to
account
Session Initiation Protocol (SIP) - correct answer. a signaling protocol used for
initiating, maintaining, and terminating real-time sessions that include voice, video and
messaging applications
SIP requests - correct answer. REGISTER; INVITE; ACK; BYE; CANCEL; UPDATE;
REFER; PRACK; SUBSCRIBE; NOTIFY; PUBLISH; MESSAGE; INFO; OPTIONS
IPsec security architecture - correct answer. Authentication Headers (AH)
Encapsulating Security Payloads (ESP)
Security Associations (SA) - Internet Security Association and Key Management
Protocol (ISAKMP); Internet Key Exchange (IKE and IKEv2)