CompTIA认证考试
Which of the following devices separates a LAN segment into two collision domains, without affecting the broadcast domain?（）A、FirewallB、BridgeC、RepeaterD、Router
题目
Which of the following devices separates a LAN segment into two collision domains, without affecting the broadcast domain?（）
- A、Firewall
- B、Bridge
- C、Repeater
- D、Router
相似问题和答案
第1题：
A. Broadcast domains require that the participating devices connect to common switches or hubs.
B. Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address.
C. Broadcast domains require a gateway device such as a router.
D. Broadcast domains consist of devices that reside on the same VLAN.
第2题：
An administrator is using a protocol analyzer to monitor traffic between two servers. However, theonly traffic that appears is broadcast and traffic originating from the administrator‘s PC.Which of the following devices is the administrator plugged into? （）
A.Hub
B. Bridge
C. Switch
D. Router
第3题：
Which of the following correctly describe the various functions and virtues of a router? (Select all valid answer choices)
A. Packet switching
B. Collision prevention on a LAN segment.
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
F. Internetwork communication
G. None of the above
A,C,F 解析：Explanation:
The main function of a router is to connect different, separated networks together. In doing so, switching packets from one network to another is a primary function, along with providing for communication between networks. As an additional feature, routers are capable of providing filtering on a network address and application port level, so choice C is also correct.
Incorrect Answers:
B. Routers can indeed be used to segment a network separate a collision domain, since routers do not forward LAN broadcasts and multicasts to other interfaces. However, routers alone can not prevent all collisions from occurring on any given LAN segment.
D. Routers actually segment LANs into smaller broadcast domains.
E. Routers do not forward broadcast and multicast traffic out the additional interfaces by default. Unless bridging or IP helpers are configured on the router, LAN broadcasts are blocked at the router level.
第4题：
A. Packet switching
B. Collision prevention on a LAN segment
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
F. Internetwork communication
第5题：
A. Network Interface Card
B. Hub
C. Bridge
D. Router
第6题：
A.Routers facilitate communications within a broadcast domain.
B.Routers facilitate communications between broadcast domains.
C.Routers are used to break up broadcast domains into separate networks.
D.Routers are used to connect small broadcast domains and form larger more efficient broadcast domains
第7题：
A.Firewall
B.Bridge
C.Repeater
D.Router
第8题：
Which of the following a true statements regarding the use of VLANs to segment a network? (Select three)
A. They increase the size of collision domains
B. They allow logical grouping of users by function.
C. They can enhance network security.
D. They increase the size of the broadcast domain while decreasing the number of collision domains.
E. They increase the number of broadcast domains while decreasing the size of the broadcast domains.
F. They simplify switch administration.
B,C,E 解析：Explanation:
VLANs are used to segment a LAN into multiple, smaller LANs. This can be used to enhance security as local traffic from one VLAN will not be passed to users in other VLANS.
Incorrect Answers:
A. VLANs are used to decrease the size of a collision domain, not increase it.
D. The opposite is true.
F. The default operation of a switch is to allow all traffic and to enable all ports in VLAN1. The use of VLANs will increase the complexity of the switch environment, making for more difficult administration.
第9题：
is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains。
A．Repeater
B．Bridge
C．Router
D．Galway
解析：路由器是网络层设备，支持多局域网接口，并可将局域网分组成为更小冲突域和广播域。
第10题：
A. The number of broadcast domains will be decreased.
B. It will make the broadcasting of traffic between domains more efficient between segments.
C. It will increase the number of collisions.
D. It will prevent segment 1‘s broadcasts from getting to segment 2.
E. It will connect segment 1‘s broadcasts to segment 2.