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試験番号：CISSP
試験科目：「Certified Information Systems Security Professional」
一年間無料で問題集をアップデートするサービスを提供いたします
最近更新時間：2018-04-27
問題と解答：全2635問 CISSP 最新受験攻略
NO.1 Which of the following can be defined as THE unique attribute used as a unique identifier
within a given table to identify a tuple?
A. candidate key
B. primary key
C. secondary key
D. foreign key
Answer: B
CISSP ファンデーション
Explanation: The following answers were NOT correct:
Candidate Key: A candidate key is a combination of attributes that can be uniquely used to identify a
database record without any extraneous data. Each table may have one or more candidate keys. One
of these candidate keys is selected as the table primary key.
Foreign Key: A foreign key is a field in a relational table that matches the primary key column of
another table. The foreign key can be used to cross-reference tables.
Secondary key: The term secondary key is a key that is used strictly for data-retrieval purposes. A
secondary key is sometimes defined as a "data item value that identifies a set of records." It is
important to note that a secondary key does not need to have unique values in a table; in this
respect, secondary keys differ from primary keys (and candidate keys and superkeys).
References:
A candidate key is an attribute that is a unique identifier within a given table.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the
Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 45.
Candidate Key Ref: http://databases.about.com/cs/specificproducts/g/candidate.htm
Feedback from Jerry: A candidate key is one of several alternative columns in a table that may be
chosen as a primary key. The PRIMARY KEY IS the unique identifier. The foundation of a relational
database is the establishiment and reliance on a unique primary key, not candidate keys. Primary key
is a more correct answer to this question than candidate key.
Secondary key ref: http://www.gslis.utexas.edu/~wyllys/DMPAMaterials/keys.html
NO.2 Which is NOT considered a physical intrusion detection method?
A. Photoelectric sensor
B. Wave pattern motion detector
C. Audio motion detector
D. Line supervision
Answer: D
CISSP ブロンズ CISSP モード
Explanation:
Line supervision is the monitoring of the
alarm signaling transmission medium to detect tampering. Audio
detectors monitor a room for any abnormal sound wave generation.
Photoelectric sensors receive a beam of light from a light-emitting
device. Wave pattern motion detectors generate a wave pattern and
send an alarm if the pattern is disturbed.
NO.3 What layer of the OSI/ISO model does Point-to-point tunnelling protocol (PPTP) work at?
A. Transport layer
B. Data link layer
C. Session layer
D. Network layer
Answer: B
CISSP スキル CISSP 準備
Explanation: PPTP operates at the data link layer (layer 2) of the OSI model and uses native PPP
authentication and encryption services. Designed for individual client to server connections, it
enables only a single point-to-point connection per session.
PPTP - Point-to-Point Tunneling Protocol - extends the Point to Point Protocol (PPP) standard fo
r traditional dial-up networking. PPTP is best suited for the remote access applications of VPNs, but it
also supports LAN internetworking.
PPTP operates at Layer 2 of the OSI model.
Using PPTP
PPTP packages data within PPP packets, then encapsulates the PPP packets within IP packets
(datagrams) for transmission through an Internet-based VPN tunnel. PPTP supports data encryption
and compression of these packets. PPTP also uses a form of
General Routing Encapsulation (GRE) to get data to and from its final destination.
Reference(s) used for this question:
KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten
Domains of Computer Security, John Wiley & Sons, 2001, Chapter 3: Telecommunications and
Network Security (page 95).
and
http://compnetworking.about.com/od/vpn/l/aa030103a.htm
and
http://technet.microsoft.com/en-us/library/cc768084.aspx
NO.4 Which choice below is NOT considered an information classification role?
A. Data owner
B. Data custodian
C. Data alterer
D. Data user
Answer: C
CISSP 番号
Explanation:
The correct answer is "Data alterer". Data owners, custodians, and users all have defined roles in the
process of information classification.
Answer "Data alterer" is a distracter.
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