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CCIE Security Exam Certification Guide by Henry Benjamin

By Henry Benjamin

A guidance consultant for the Cisco qualified web specialist (CCIE) defense written examination 350-018 and recertification examination 350-009 that reveal mastery of the networking strategies and safeguard talents essential to construct a fancy, safe, and routable IP community utilizing Cisco routers. It experiences routing protocols, the area identify approach, TFTP dossier transfers, parts, entry lists, encryption applied sciences, home windows and Unix, packet filtering, and the intrusion detection process

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Book Page 36 Monday, March 10, 2003 9:29 AM 36 Chapter 2: General Networking Topics NOTE A subnet is a network that is segmented by network administrators, allowing a hierarchical routing topology. Subnetting allows great use of IP address space using binary bits from the subnet mask. Examples of subnets appear later in this chapter. Routing allows communication between these subnets. The host address is a logical, unique address that resides on a subnet. The Internet Engineering Task Force (IETF) standards body, which is a task force consisting of over 80 working groups responsible for developing Internet standards, has defined five address classes and the appropriate address ranges.

A. The data only. b. The header only. c. The data and header. d. There are no TCP header checksums; IP covers the calculation. 36 ISDN BRI channels are made up of what? a. 1 × 64 kbps channel and one D channel at 64 kbps b. 2 × 64 kbps channels and one D channel at 64 kbps c. 2 × 64 kbps channels and one D channel at 16 kbps d. book Page 20 Monday, March 10, 2003 9:29 AM 20 Chapter 2: General Networking Topics 37 What services can ISDN carry? a. Data only b. Data and voice only c. Voice and video d.

Voice and video d. Data, voice, and video 38 Place the following steps in the correct order for PPP callback, as specified in RFC 1570. 1. A PC user (client) connects to the Cisco access server. 2. The Cisco IOS Software validates callback rules for this user/line and disconnects the caller for callback. 3. PPP authentication is performed. 4. Callback process is negotiated in the PPP link control protocol (LCP) phase. 5. The Cisco Access Server dials the client. a. 1, 2, 3, 4, 5 b. 1, 3, 2, 5, 4 c.

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