Explanation/Reference:
Explanation:
Computers and the information processed on them usually have a direct relationship with a company's critical missions and objectives. Because of this level of importance, senior management should make protecting these items a high priority and provide the necessary support, funds, time, and resources to ensure that systems, networks, and information are protected in the most logical and cost-effective manner possible.
For a company's security plan to be successful, it must start at the top level and be useful and functional at every single level within the organization. Senior management needs to define the scope of security and identify and decide what must be protected and to what extent.
Incorrect Answers:
A: IS security specialists may be the ones who implement the security measures; however, they do not bear the primary responsibility for determining the level of protection needed for information systems resources.
C: Senior security analysts may be the ones who determine how to implement the security measures; however, they do not bear the primary responsibility for determining the level of protection needed for information systems resources.
D: Systems Auditors ensure the appropriate security controls are in place. However, they do not bear the primary responsibility for determining the level of protection needed for information systems resources.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 101

Explanation/Reference:
Explanation:
DNS primarily uses User Datagram Protocol (UDP) on port number 53 to serve requests.DNS queries consist of a single UDP request from the client followed by a single UDP reply from the server.
Incorrect Answers:
A: FTP uses the TCP protocol.
B: Telnet uses the TCP protocol.
C: SMTP uses the TCP protocol.
References:
https://en.wikipedia.org/wiki/Domain_Name_System

By technical controls we mean some or all of the following: Access Control software Antivirus Software Passwords Smart Cards Encryption Call-back systems Two factor authentication

Here is something on "Named Perils" for your understanding: "Named Perils is a formal and specific listing of perils covered in a policy providing property insurance. A policy covering for damage by fire is said to cover for "the named peril" of fire". As you can see, Answer C is correct.