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What are three common reasons why customers are saying that they need to evolve their datacenter?（）
A . architectures that is inflexible and inefficient
B . desire to use the same vender for desktop and server deployments
C . selecting best-performing vendors for each individual component
D . existing equipment has reached and of life
E . increasing operational costs of managing data centers
F . demand among users for access to information anytime, anywhere
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What are some of the characteristics of the OSPF routing protocol?（）
A . It confines network instability to a single area of network.
B . It increases the routing overhead of the network
C . It supports VLSM
D . It routes between Autonomous Systems.
E . It allows extensive control of routing updates
F . None of the above
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What are two advantages of Layer 2 Ethernet switches over hubs？（）
A . decreasing the number of collision domains
B . filtering frames based on MAC addresses
C . allowing simultaneous frame transmissions
D . increasing the size of broadcast domains
E . increasing the maximum length of UTP cabling between device
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What are some virtues of implementing end-to-end VLANs？（）
A . End-to-end VLANs are easy to manage.
B . Users are grouped into VLANs independent of a physical location.
C . Each VLAN has a common set of security and resource requirements for all members.
D . Resources are restricted to a single location.
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Although TCP segments differ from UDP segments, they both contain some common fields. What two segments do they share in common?（）
A . source address
B . options
C . sequence number
D . sources
E . destination port
F . checksum
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What are some of the characteristics of a typical VLAN arrangement?（）
A . VLANs logically divide a switch into multiple, independent switches at Layer 2.
B . Trunk links can carry traffic for multiple VLANs.
C . VLAN implementation significantly increases traffic due to added trunking information.
D . A VLAN can span multiple switches.
E . VLANs typically increase the number of switches needed
F . VLANs typically decrease the number of switches needed
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FabricPath brings the benefits of routing protocols to layer 2 network Ethernet environments. What are the advantages of using FabricPath technology？ （）
A . FabricPath provides MAC address scalability with conversational learning
B . Loop mitigation with TTL in the frame field
C . STPl independence
D . 10 Gbps bandwidth
E . Layer 2 extensions between data center
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What are the characteristics of the process of documenting the layers of an existing network? （）
A . begins with gathering organizational input that may be inaccurate
B . begins with gathering organizational input that does not need to be supplemented by a network audit
C . requires a network audit to support some upgrade decisions
D . requires a network audit to support any network restructuring
E . provides reliable input for verifying network consistency
F . does not provide reliable input for designing change
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What are BCP 38 （Best Common Practices 38）/RFC 2827 Ingress Packet Filtering Principles？（）
A . Filter Smurf ICMP packets.
B . Filter as close to the core as possible
C . Filter as close to the edge as possible
D . Filter as precisely as possible
E . Filter both source and destination where possible
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What are three common reasons for ATM CRC errors？（）
A . Incorrect VPI and VCI configuration
B . Noise， gain hits， or other transmission problems on the data link equipment
C . ATM cells are dropped due to incorrect ATM routing in the service provider.
D . A faulty or failing ATM interface.
E . Cells are dropped due to traffic policing in the ATM cloud on one or more virtual circuits attached to theATM interface
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In the communications industry, what are the features and benefits of using the layered OSI model?（）
A . It encourages industry standardization by defining what functions occur at each layer of the model.
B . It necessitates changes in functionality in one layer to other layers.
C . It enables equipment efficiency from different vendors to use the same electronic components.
D . It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.
E . It supports the evolution of multiple competing standards, and thus enhances business equipment manufacturing opportunities.
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What are five of the seven layers that are found in the OSI model?（）
A . session
B . physical
C . protocol
D . gateway
E . data link
F . transport
G . applicatio
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Some cranes are mounted in pairs on a common platform which can be rotated through（）.
A . 360°
B . 270°
C . 180°
D . 90°
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What are two advantages of Layer 2 Ethernet switches over hubs?（）
A . decreasing the number of collision domains
B . filtering frames based on MAC addresses
C . allowing simultaneous frame transmissions
D . increasing the size of broadcast domains
E . increasing the maximum length of UTP cabling between device
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In Cisco Network Attached Storage solutions， what are two common high-availability features for small business？（）
A . XFS file system
B . support for RAID 4
C . 10 Gigabit Ethernet connections
D . lifetime warranty
E . SMART disk support
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Bridges and switches are Layer 2 devices that provide the same basic functionality but that also have some differences. Which two traits apply to switches only？（）
A . supports Layer 2 VLANs
B . segment LANs
C . are faster because forwarding decisions are made on hardware
D . typically have fewer ports because forwarding decisions are made in software
E . flood frames out all port
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What are three common reasons why customers are saying that they need to evolve their data center? （）
A . demand among users for access to information anytime, anywhere
B . desire to use the same vender for desktop and server deployments
C . existing equipment has reached and of life
D . increasing operational costs of managing data centers
E . architectures that is inflexible and inefficient
F . selecting best-performing vendors for each individual component
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What are some characteristics of the typical VLAN arrangement?（）
A . VLANs logically divide a switch into multiple, independent switches at Layer 2.
B . Trunk links can carry traffic for multiple VLANs.
C . VLAN implementation significantly increases traffic due to added trunking information.
D . A VLAN can span multiple switches.
E . VLANs extend the collision domain to include multiple switches.
F . VLANs typically decrease the number of multiple switches.
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What are some general guidelines regarding the placement of access control lists?（）
A . You should place standard ACLS as close as possible to the source of traffic to be denied.
B . You should place extended ACLS as close as possible to the source of traffic to be denied.
C . You should place standard ACLS as close as possible to the destination of traffic to be denied.
D . You should place extended ACLS should be places as close as possible to the destination of traffic to be denied.
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1. What are some of Shakespeare's representative works?
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What are the two most commonly seen narrative point of view used in fictional writing?
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What are the common pitfalls in a literary analysis? 翻译为：文学分析中常见的陷阱是什么？
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What are some of the characteristics of a typical VLAN arrangement？（）
A. VLANs logically divide a switch into multiple, independent switches at Layer 2.
B. Trunk links can carry traffic for multiple VLANs.
C. VLAN implementation significantly increases traffic due to added trunking information.
D. A VLAN can span multiple switches.
E. VLANs typically increase the number of switches needed
F. VLANs typically decrease the number of switches needed
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What are some family types revealed in the clip？
A、extended family
B、gay family
C、nuclear family
D、step-family
