is451exam2

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tttran1
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269797
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is451exam2
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2014-04-09 02:32:00
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is451exam2
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  1. A directory "blueprint" that describes structure of information in the directory is …
    A. Schema
    B. Attribute
    C. DN (Distinguished Name)
    D. Object
    A. Schema
    (this multiple choice question has been scrambled)
  2. Which of the following SNMP commands is not originated by NMS?
    A. Get
    B. Get-next
    C. Set
    D. Trap
    D. Trap
    (this multiple choice question has been scrambled)
  3. What is the name of a virtual database of managed objects that SNMP agent tracks?
    A. SNMP
    B. OID
    C. SMI
    D. MIB
    D. MIB
    (this multiple choice question has been scrambled)
  4. An SNMP __ is responsible for responding to polls from and sending traps to an SNMP ___.
    A. NMS; Manager
    B. Manager; agent
    C. NMS; protocol
    D. Agent; MIB
    E. Agent; manager
    B. Agent; manager
    (this multiple choice question has been scrambled)
  5. A directory client is …
    A. DSA
    B. DSP
    C. DAP
    D. DUA
    D. DUA
    (this multiple choice question has been scrambled)
  6. Why is it preferable to use UDP transport for SNMP?
    A. It is more reliable
    B. It uses encryption
    C. It is more secure
    D. It has lower overhead
    D. It has lower overhead
    (this multiple choice question has been scrambled)
  7. What components of Directory Services holds the data repository?
    A. DSA
    B. LDAP
    C. DAP
    D. DUA
    A. DSA
    (this multiple choice question has been scrambled)
  8. Each piece of information that describes some aspect of a directory entry is called …
    A. DUA
    B. An attribute
    C. An object
    D. A schema
    B. An attribute
    (this multiple choice question has been scrambled)
  9. What SNMP command would bee used to make changes in a router configuration?
    A. Get-next
    B. Get
    C. Set
    D. Trap
    C. Set
    (this multiple choice question has been scrambled)
  10. What type of access is the most common in the Directory Services?
    A. Read
    B. Update
    C. Delete
    D. Write
    A. Read
    (this multiple choice question has been scrambled)
  11. What does OID identifies about a MIB object?
    A. It's position in the MIB subtree
    B. The number of its subnodes
    C. It's value
    D. It's priority
    A. It's position in the MIB subtree
    (this multiple choice question has been scrambled)
  12. Which of the following is true about Directory Services replication?
    a. It allows directory database to be distributed
    b. It supports directory access load-balancing
    c. It supports directory fault-tolerance
    d. All of the above
    d. All of the above
  13. Which of the following protocols is used for directory access?
    A. DISP
    B. DAP
    C. DSP
    D. MIB
    B. DAP
    (this multiple choice question has been scrambled)
  14. What standard MIB is required to be implemented by all devices?
    A. MIB Root
    B. MIB II
    C. MIB-Main
    D. MIB I
    B. MIB II
    (this multiple choice question has been scrambled)
  15. What is used to define management information in MIBs?
    A. SNMP
    B. LDAP
    C. OID
    D. SMI
    D. SMI
    (this multiple choice question has been scrambled)
  16. Which of the following acts as a primary key for a directory?
    A. Object
    B. RDN
    C. DN
    D. Schema
    C. DN
    (this multiple choice question has been scrambled)
  17. Which of the following is a difference between LDAP-based and X.500-based directories?
    A. Transport/network protocol stack used/for directory access
    B. Client-server architecture
    C. Directory structure
    D. Naming convention
    A. Transport/network protocol stack used/for directory access
    (this multiple choice question has been scrambled)
  18. Directory Information Tree represents …
    A. Hierarchical directory structure and object organization
    B. Client-server directory model
    C. Directory schema
    D. Set of directory object permissions
    A. Hierarchical directory structure and object organization
    (this multiple choice question has been scrambled)
  19. RAID 0 configuration…
    A. Stripes data and parity across multiple drives
    B. Mirrors data across 2 drives
    C. Stripes data across multiple drives with an additional drive dedicated to parity
    D. Stripes data and provides no parity
    D. Stripes data and provides no parity
    (this multiple choice question has been scrambled)
  20. How are RDN and DN related?
    A. They represent the same thing
    B. DN is part of RDN
    C. They are not related
    D. RDN is part of DN
    D. RDN is part of DN
    (this multiple choice question has been scrambled)
  21. What is the difference between disk mirroring and disk duplexing?
    A. More disk controllers are used in mirroring
    B. More disks are used in duplexing
    C. More disk controllers are used in duplexing
    D. More disks are used in mirroring
    C. More disk controllers are used in duplexing
    (this multiple choice question has been scrambled)
  22. What presents a block level interface to the network?
    A. NAS
    B. RAID
    C. DAS
    D. SAN
    D. SAN
    (this multiple choice question has been scrambled)
  23. Which of the following does SNMPv3 support?
    a. Message integrity
    b. Data encryption
    c. Authentication
    d. All of the above
    d. All of the above
  24. Software RAID processing is handled by:
    A. Disk controller
    B. Disc drives
    C. SCSI
    D. Computer operating system
    D. Computer operating system
    (this multiple choice question has been scrambled)
  25. What aspect of RAID 0 makes it different from all other RAID levels?
    A. It offers read/write performance improvement
    B. It uses more than 1 disk
    C. It uses disk striping
    D. It has no redundancy
    D. It has no redundancy
    (this multiple choice question has been scrambled)
  26. RAID 1 with 2 disk controllers is also called…
    A. Duplexing
    B. Striping
    C. Mirroring
    D. Switching
    A. Duplexing
    (this multiple choice question has been scrambled)
  27. What are the goals of security management?
    A. Track and control inventory of network components
    B. Specify, log and regulate user access to network resources
    C. Measure, analyze and control performance of network components
    D. Control access to network components according to a well-defined policy
    D. Control access to network components according to a well-defined policy
    (this multiple choice question has been scrambled)
  28. What are the goals of configuration management?
    A. Control access to network components according to a well-defined policy
    B. Track and control inventory of network components
    C. Log and regulate user access to network resources
    D. Measure, analyze and control performance of network components
    B. Track and control inventory of network components
    (this multiple choice question has been scrambled)
  29. What SNMP command is asynchronous?
    A. Get-next
    B. Trap
    C. Get-bulk
    D. Set
    B. Trap
    (this multiple choice question has been scrambled)
  30. iSCI is encapsulated in …
    A. TCP/IP
    B. SCSI
    C. RAID
    D. Fibre Channel
    A. TCP/IP
    (this multiple choice question has been scrambled)
  31. Storage attached locally to a server through block-level interface is called:
    A. SAN
    B. NAS
    C. iSCI
    D. DAS
    D. DAS
    (this multiple choice question has been scrambled)
  32. What component of Directory Services maintains and communicates directory information?
    A. DSA
    B. DAP
    C. DUA
    D. LDAP
    A. DSA
    (this multiple choice question has been scrambled)
  33. In network management applications, the ___ is software packaged with a network element that collects information about that element.
    A. Manager
    B. NMS
    C. MIB
    D. Agent
    D. Agent
    (this multiple choice question has been scrambled)
  34. Which of the following represents the format of a MIB OID?
    A. 1 3 6 3 2
    B. 1-3-6-3-2
    C. 1#3#6#3#2
    D. 1.3.6.3.2
    D.1.3.6.3.2
    (this multiple choice question has been scrambled)
  35. What is the purpose of directory replication process?
    • It allows directory database to be distributed
    • It supports directory access load-balancing
    • It supports directory fault-tolerance
  36. Define Network (Distributed) file systems and give an example of when one needs to be used.
    • Client/server based application that allows clients to access and process data stored on the server as if it were on their own computer
    • (SMB, CIFS, NFS, AFS)
  37. Compare and contrast traditional Fibre Channel SANs and IP-based SANs, including their respective protocols. What components are the same and what are different?
    • Fibre Channel SANs use Fibre Channel protcol, it’s expensive, its use dedicated system/ architecture
    • IP-based SANs use iSCSI protocol, use existing infrastructure, use existing hardware and software
    • They both transmit SCSI commands over SANs
  38. Draw Directory Services application architecture, include discussion/ representation of centralized/ distributed nature of a directory database.
    • DRAWING: SEE NOTES
    • DUA->DAP->DSA->DSP->DSA
  39. Label the 2 pictures below with their corresponding network storage solution methods and described the type of access (file-level or block-level) on each corresponding network
    1. Application -> Network -> File System -> Disk Storage :
    2. Application -> File System -> Network-> Disk Storage :
    • 1. Application -> Network -> File System -> Disk Storage : NAS; Access type: File-level
    • 2. Application -> File System -> Network-> Disk Storage : SAN; Access type: Block-level access

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