Which Open System Interconnection (OSI) layer is responsible for data trnaslation, compression and encryption?
D) Presentation layer
Page 17
True or False. Each layer of the OSI add its overhead information to the data from the layer above, a process known as encapsulation?
True
pg 17:
Which OSI layer has been subdivided into two sublayers: Logical Link Contros (LLC) and Media Access Control (MAC)?
B) Data Link Layer
pg 18
Which one of the following is the correct size of the Media Access Control (MAC) address?
C) 6 bytes
pg 20
Which of the following is NOT one of the three basic elements of the IEEE 802.3 standard?
A) Ethernet architecture, internetworking, and management
IEEE 802.3 - defines 1: physical media (fiber or copper) used to transport Ethernet signals over a network 2: MAC learning and forwarding rules 3: format of the Ethernet frame
True or False: For an Ethernet frame, when the I/G (Individual/Group) bit is set to a zero (0) the frame is to be sent to a group of NE's.
True
pg 29 - Multi cast frames I/G is set to 1 then sent to group
What are the Communication Modes (CM) that operate on a Ethernet Netowk
C) All of the above
pg 25
What was the first commercially successful version of Ethernet 10BASE-T supported by?
C) Half-Duplex Mode
PG 26
Select which action, or actions, would be performed by a Switch when it receives and inspects a unicast destination MAC address for an Ethernet frame.
D) Look for the address in the MAC addresstable. if found, forward the frame on the egress port where the device can be reached.
pg 31
True or False: Ethernet Switch can only forward traffic if knows where the MAC address exists in relation to its physical ports. This called a MAC Learning Table.
True
pg 30. MAC Learning and Frame Forwarding
Broadcast frame is a special type of multicast frame that is intended to be delivered to all devices in L2 broadcast domain. What Hexadecimal character indicates it?
A) FF:FF:FF:FF:FF:FF
pg 29
True or False:
Multicast frames provide a switch the ability to efficiently handle what types of traffic?
True
Real-time video channels, Video conferencing,
Using Virtual Local Area Networks (VLANs) offers many benefits in a network. Select which of the following is NOT a benefit of using VLANs.
A) Reduction in provisioning requirements
pg 32
IEEE Standard 802.1Q -
Standard specifies how the MAC service is supported by Bridged Networks, the principles of operation of those networks, and the operation of MAC Bridges and VLAN Bridges, including management, protocols, and algorithms.
Select which IEEE standard defines how a single tagged Ethernet frame is formatted.
D) 802.1Q
pg 33
True or False: The minimum frame size of an Ethernet frame is 46 bytes.
False
the minimum is 64 bytes
Which of the following is a Network Element (NE) in a Carrier Ethernet (CE) network?
D) Switch
What is the purpose of an age timer?
Address information is stored in a MAC learning table is not retained indefinitely. If no activity is detected for a period of time, and the age timer expires, the entry is considered inactive and is removed. Age timer is typically five minutes or 300 seconds. page 30
what are the common physical media types in use for data transmission.
Copper, Fiber, and Wireless
Explain the difference between half-duplex and full-duplex communication modes.
one way - Half duplex
Two way - full duplex
Which of the following frame types is used to replicate a frame and send it out all ports except the port it was received on?
Unicast
Multicast
Broadcast
Broadcast frame
How is traffic segmented in a VLAN?
Reduces the number of Broadcast domains. If not apart of VLAN its dropped.
List the benefits of VLAN's
Service Deliverability, Security, Broadcast, hardware
List the benefits of Ethernet over other layer 2 technologies.
Cost effective, common, standardized, supports higher speeds, easier to deploy
Choose three characteristics that are requirements for a Network Element (NE) to function in the network core.
a: High-speed ports
b: Scalability
c: SLA support
d: CoS support
e: QoS support
f: Auto-provisioning
a: High-speed ports
b: Scalability
d: CoS support
Choose Two characteristics that were discussed as applicable at the metro edge in a Carrier Ethernet (CE) network.
a: Scalability
b: Video on demand
c: x25 connection
d: Resiliency
e: Virus protection
a: Scalability
d:Resiliency
Select which of the following is NOT a requirement for customer edge Network Elements (NEs)
C) Scalability
pg 54
What is the Metro Ethernet Forum?
The MEF is a global industry alliance, comprised of more than 200 organizations from different technological backgrounds.
Choose THREE serrvice topologies that are used as the basis of standardized services.
D. Point-to-Point
c. Point-to-Multipoint (P2MP)
e. Multipoint-to-Multipoint (MP2MP)
p87
Name the Five MEF attributes.
Standardized services
Scalability
Reliability
Service Management
Quality of Service
Name three business CE applications.
Private line service
VPN
VoIP
Name three residential CE applications.
Video
voice
data
Give an example of how a private line service would be used.
Internal customer to customer service
What trend in wireless technology has created a high demand for CE service delivery in wireless backhaul?
5G service
What are the three major divisions in the CE network topology?
Core
Metro edge
Customer edge
IEEE standard 802.1Q is?
VLAN
IEEE 802.1D?
MAC Bridges
IEEE 802.1ad?
Provider Bridges
IEEE 802.1ag?
Connectivity Fault Management
IEEE 802.1AS ?
Timing and Synchronization
IEEE 802.1Qay?
Provider Backbone Bridge Traffic Engineering
IEEE 802.1Qat?
Stream Reservation Protocol
IEEE 802.3ba?
40G and 100G Ethernet
IEEE 802.3av?
10G EPON
IEEE 802.3?
Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
ITU-T SG13 Y.1730 ?
Requirements for OAM functions in Ethernet-based Networks and Ethernet Services.
+ITU-T SG13 Y.1731?
OAM Functions and Mechanisms for Ethernet-based Networks
Select which Carrier Ethernet (CE) attribute is considered by the MEF to be a key difference between a Local Area Network (LAN) and a service provider network?
D) Scalability
Select which of the following is NOT a requirement for equipment to be considered as Carrier Ethernet (CE) reliable.
C) The equipment must support legacy fibre optic transmission systems