What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？ （）

A . IP precedence B . media type C . DSCP D . outgoing interface E . incoming interface F . DLCI

A .  low optical powe B .  high optical power C .  few optical channels D .  many optical channels E .  low chromatic dispersion F .  high chromatic dispersion G .  too much power differential in the optical channel

A . IGMP B . IGMP snooping C . PIM D . CGMP E . static assignment F . CDP

A . IP address B . Interface name C . Port numbers D . L3 protocol type E . mac addre

A . WrapUp Time   B . Service Level   C . Overflow CSQ   D . Agent Name   E . Automatic Work   F . CRS Applicatio

A . fiber dispersion B . signal attenuation C . transmitter power D . amplifier bandwidth E . receiver dispersion tolerance

A . CPU utilization B . where Netflow data will be sent C . number of devices exporting Netflow data D . port availability E . SNMP version F . WAN encapsulatio

A . To pass data to a pop-up menu.  B . To populate a base table block.  C . To pass data to other form modules.  D . To pass data to other Oracle products.  E . To dynamically construct SELECT statements.  F . To server as the source for a FROM clause query.&e

A . Government regulation and environmental effects B . Cost of power consumption and environment effects C . Government regulation and cost of power consumption D . Environmental effects and low cost of product

A .  dispersion B .  Optical SNR C .  span attenuation D .  four wave mixing E .  receiver sensitivity

A . low optical power B . high optical power C . few optical channels D . many optical channels E . low chromatic dispersion F . high chromatic dispersion G . too much power differential in the optical channel

A .  TKIP uses an advanced encryption scheme based on AES B .  TKIP provides authentication and integrity checking using Cipher Block Chaining Message Authentication Code （CBC-MAC） C .  TKIP provides per-packet keyingand a rekeying mechanism D .  TKIP provides message integrity check E .  TKIP reduces WEP’s vulnerabilities byusing different hardware encryption chipset F .  TKIP uses a 48 bit InitializationVector

A .  Authentication   B .  Mobility C .  Security management D .  Transmission of beacon frames E .  Real-time portions of MAC management F .  Real-time aspects of the 802.11 prtocol management G .  SNMP collectio

A . codec B . link speed C . Layer 2 encapsulation D . packet overhead （IP/UDP/RTP） E . link delay F . total number of simultaneous calls that are allowed

A . Resource Reservation Protocol （RSVP） B . IP precedence C . traffic shaping D . trust boundaries E . DSCP F . applicatio

A .  Compress payload. B .  Use header compression. C .  Increase link capacity. D .  Use random early detection. E .  Guarantee bandwidth to fragile flows. F .  Implement network-based application recognition.

A . Effect of the moon's gravity B . Fetch C . Wind velocity D . Length of time a wind has been blowing

A . number of product features B . return on investment C . competitiveness D . regulation E . day one costs F . availability of budget

A .  Ease of disk administration and maintenance B .  Load balancing across physical disks C .  Software RAID-1 data redundancy with double or triple mirrors D .  Automatic recovery of failed disk

A .  fiber dispersion B .  signal attenuation C .  transmitter power D .  amplifier bandwidth E .  receiver dispersion tolerance

A . dispersion B . Optical SNR C . span attenuation D . four wave mixing E . receiver sensitivity

A、2341 B、1234 C、3214 D、4321