Chapter 1 Discovery 3

1. What are two benefits of using VPN?

>> they allow a remote worker to have access to network resources as if they were physically located in the office >> they encrypt all communications between the remote worker and internal network resources

1. When planning to identify traffic flows and network applications that run on an enterprise network, why is it best for a network engineer to sample traffic during times of peak utilization?

>> the network is busiest and the most critical business applications are in use, providing an accurate sampling of network activities

1. What are two reasons to analyze multiple network segments when identifying network traffic?

>> network segments may have varying traffic patterns exclusive to that segment >> network traffic that passes between segments may be reduced if a server accessed primarily by one segment is relocated to that segment

1. Why do VoIP and video network traffic use UDP instead of TCP?

>> voice and video applications cannot tolerate the delay caused by retransmissions

1. Refer to the exhibit. If SW1 stops working, which statement will be true?

>> hosts A and B will not be able to reach each other or hosts C, D, and the server

1. Drag each definition on the left to the matching functional component of the Cisco Enterprise Architectures on the right.

>>           consists of the campus infrastructure with server farms                                Enterprise Campus
Consists of Internet, VPN, and WAN modules                                    Enterprise Edge
Provides Internet, WAN, and PSTN services                                        Service Provider Edge

1. Which two technologies enhance the ability of remote workers to connect securely to internal company resources?

>> SSH >>VPN

1. A company has hired a new employee who will be working remotely. What should the IT administrator do so that the employee can connect to the internal network using the existing VPN infrastructure of the company?

>> configure the VPN client application on the laptop of the remote employee

1. A remote IT engineer needs to simultaneously demonstrate how to operate a software application to multiple people. Which tool can be used to perform this task?

>> desktop sharing

1. Drag each type of network on the left to the appropriate description on the right

>>           intranet                provides Internet-like services for company employees only
Internet               global public network that operates using a common set of communication protocols
Extranet               private network that allows access by specified external users like contractors and suppliers
WAN                     private network that connect geographically dispersed sites using public or private services
LAN                        private network controlled by a single organization usually limited to a single campus

1. Which statement is true about the three-layer hierarchical design model?

>> smaller networks can use the core layer services offered by their ISP

1. When designing a network based on the Cisco Enterprise Architecture, which two items would be included in the enterprise edge functional component?

>> VPN servers >> intrusion detection system