RCDD Chapter 20
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RCDD chapter 20
- 1.In Data center planning what type of telecommunications cabling are required?
- A.
100-ohm twisted-pair cable? (Category 6/class E or higher is recommended.
- B.
Unshielded or shielded copper cable
- C.
Multimode optical fiber (50/125 um 850 nm laser optimized)
- 2.Review page 20.9
- A.
Yes
- B.
No
- 3.Providing redundant cross-connects areas and pathways that are physically separtated can decrease the reliability of the telecommunications infrastructure.
- A.
True
- B.
False
- 4.N +1 redundancy =
- A.
Provides two additional units
- B.
System meets base requriements and has no redundancy
- C.
Provides two complete units
- D.
Provides one additional unit
- 5.N + 2 redundancy =
- A.
Provides two additional units
- B.
System meets base requriements and has no redundancy
- C.
Provides two complete units
- D.
Provides one additional unit
- 6.2N redundancy =
- A.
Provides one additional unit
- B.
Provides two complete units
- C.
System meets base requriements and has no redundancy
- D.
Provides two additional units
- 7.A Tier I data center is susceptible to disruptions from both planned and unplanned activity.
- A.
True
- B.
False
- 8.Tier IV provides site infrastructure capacity and capability to premit any planned activity without disruption to the critical load. This is know as what?
- A.
Redundant components
- B.
Concurrently maintainable
- C.
Fault tolerant
- D.
Basic
- 9.Physical threat is the the worst data center threat.
- A.
True
- B.
False
- 10.For physical secruity of data centers it is generally accepted that there are four primary authentication factors with an additional optional factor. Type 1 =
- A.
Something you know, or passwords and personal identification numbers (PIN)
- B.
Something you have, or keys, cards, and tokens
- C.
Something you, or some physical characteristic (biometrics
- D.
Something you do (optional and less distinct authentication factor)
- 11.Type 2 =
- A.
Something you do (optional and less distinct authentication factor
- B.
Something you are, or some physical characteristic (biometrics)
- C.
Something you have, or keys, cards, and tokens
- D.
Something you know, or passwords and personal identification numbers (PIN)
- 12.Type 3 =
- A.
Something you know, or passwords and personal identification numbers (PIN)
- B.
Something you have, or keys, cards, and tokens
- C.
Something you do (optional and less distinct authentication factor
- D.
Something you are, or some physical characteristic (biometrics)
- 13.Type 4 =
- A.
Something you are, or some physical characteristic (biometrics)
- B.
Something you have, or keys, cards, and tokens
- C.
Something you know, or passwords and personal identification numbers (PIN)
- D.
Something you do (optional and less distinct authentication factor
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