Exam (elaborations)
Quizlet Study Guide Questions and Answers 2024
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Exam of 9 pages for the course DELL CMC at DELL CMC (Quizlet Study Guide)
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Quizlet Study GuideWhy use Stacking? - answer*Single IP for management, 1 uplink from stack, Firmware
updates=Reboot, not resilient=bad for data center, ok for Campus
Why LAG? - answer Switches leverage user ports to interconnect, switches operate
independently, better for Data Center than stacking, LAG switches lose 1/2 their
bandwidth due to STP, switches managed individually
Why VLT? - answer User use ports to create interconnect, 10/40/100 GB ports for
redundancy, duel active (no stp) , 0 fabric downtime, individual managed, only 2
switches per VLT Domain
What is cable termination – answer cable endpoints (connection type)
What is Transceivers (optics) - answer Transmitter & Receiver in single housing
SFP - answer Small form factor pluggable (1,10, 25 GBE, FC)
QSFP - answer Quad small form factor pluggable (40 & 100 GB)
Base T - answer Base twisted pair (10/100, 1, 10 GB
SX & SR - answer Short Range (Transceivers accepting multi-mode fiber
LX & LR - answer Long Range (Transceiver accepting SMF (single mode fiber
What is DAC? - answer Passive Cooper Cable with transceivers fused on each end.
What is AOC? - answer Fiber optic cabling with transceivers fused on each end.
Fiber Cable vs Fiber Channel - answer Fiber Cable-is just a medium using fiber glass or
silicon to send light down a cable, typically over long distances, used for standard
Ethernet, FCoE& Fibre Channel connections. Fiber Channel (FC) is a protocol
(language) use fiber optic media, doesn't use OSI Model, Dell positions S4148U-ON
"unified" switch, & Brocade FC switches OEM, Dedicated SAN Fabric only
What are 3 Network isolation types of firewalls? - answer LAN-Internal, WAN-External,
DMZ-Optional
What does the campus network consist of? - answer Access-layer 2 endpoints,
Aggregation-layer 2 Distribution, Core-layer 3 routing
, What does the Data Center network consist of? - answer Leaf-layer 2 Endpoints, Spine-
layer 3 routing, SAN
What is Spanning Tree Protocol (STP) - answerallows only one active path at a time
between any two networks devices (does establish redundant links)
What is Flow Control (traffic (op) ? - answerProcess of managing the rate of data
transmission between two nodes to prevent a fast sender from outrunning a slow
receiver.
What is (POE) Power over Ethernet? - answerProvides electrical power though the
ethernet connection
What is Uplinking? - answerConnection of one switch to another between network tiers.
What is Stacking? - answerthe ability to connect switches together via specific ports &
manage them as one
name 2 type of power supplies - answerSingle or redundant
What is Power over Ethernet (POE)? - answerprovides electrical power though the
Ethernet connection
What is on the Layer 3: Address IP - answerIP (Internet Protocol) Address, IPv4-32 bit,
IPv6-128 bit
What is Link Aggrigation - answerusage of multiple network ports in parallel to increase
the link speed aka trunking or port trunking
What is DHCP (Dynamic Host Configuration Protocol) - answeris a protocol for
assigning dynamic IP addresses to devices on a network
what is Switching Fabric capacity? - answeroverall amount of traffic that can be handled
at any moment
What is Packet Buffer memory - answermemory set aside for packets awaiting
transmission over networks or storing packets received over networks.
What is Forwarding capacity/rate? - answerpackets through switch in a second
What is Auto-negotiation/sensing - answerability to automatically determine the fastest
speed that 2 devices can communicate, lowest common denominator Gb/s
What is QoS (quality of service) - answerVarying levels of priority to different apps,
users, or data flows.
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