VLSM stand for Variable Length Subnet Mask.VLSM originally
defined in RFC 1812, allows you to apply different subnet
masks to the same class address space.
Remember that the best subnet mask for point-to-point links
is 255.255.255.252(130).
VLSM allows you to use more than one subnet mask for given
class address.Remember the two major advantages of VLSM:
More efficient use of address and route
summarization/aggregation.
(n) ________________ is a one-way mathematical function that maps variable values into smaller values of a fixed length. A. Symmetric key B. Algorithm C. Back door D. Hash function E. Integrity
_______ intrusion-detection systems learn the behavior of a machine or network, and create a baseline. A. Behavioral analysis B. Statistical anomaly C. Network D. Pattern matching E. Host
Explain Which principle of secure design states that a security mechanisms methods must be testable? A. Separation of privilege B. Least common mechanism C. Complete mediation D. Open design E. Economy of mechanism
Explain Which of the following should be included in an enterprise Business Continuity Plan (BCP)? (Choose THREE.) A. Accidental or intentional data deletion B. Severe weather disasters C. Employee terminations D. Employee administrative leave E. Minor power outages
Explain What type of document contains information on alternative business locations, IT resources, and personnel? A. End-user license agreement B. Nondisclosure agreement C. Acceptable use policy D. Security policy E. Business continuity plan?
A(n) _______ is the first step for determining which technical information assets should be protected. A. Network diagram B. Business Impact Analysis C. Office floor plan D. Firewall E. Intrusion detection system?
Explain Which type of Business Continuity Plan (BCP) test involves shutting down a primary site, bringing an alternate site on-line, and moving all operations to the alternate site? A. Parallel B. Full interruption C. Checklist D. Structured walkthrough E. Simulation?
_______ can mimic the symptoms of a denial-of-service attack, and the resulting loss in productivity can be no less devastating to an organization. A. ICMP traffic B. Peak traffic C. Fragmented packets D. Insufficient bandwidth E. Burst traffic?
Explain How do virtual corporations maintain confidentiality? A. Encryption B. Checksum C. Data hashes D. Redundant servers E. Security by obscurity?
Explain Which of the following is the BEST method for managing users in an enterprise? A. Enter user data in a spreadsheet. B. Implement centralized access control. C. Deploy Kerberos. D. Place them in a centralized Lightweight Directory Access Protocol. E. Use a Domain Name System.
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