Question 12 Chapter 3 Route Aggregation Organization o 100.40.50.0/23 Aggregated Network A.B.C.D/M Organization 1 100.40.60.0/23 ISP-A Organization 2 100.40.70.0/23 Internet Organization 3 100.40.80.0/23 In the figure above, BGP is used for inter-AS routing. ISP-A is then going to advertise a single route to access all the 4 networks at the left side (i.e. networks of Organizations 0 to 3). Q1. What is the aggregated network that is advertised by ISP-A? Write down the 4 parts of the address. different input boxes. i.e. if the address is a.1.2.3.4, write down '1' in the first box, '2' in the second box, etc. • Network Address • Mask: NOTE: Use this link for decimal-to-binary & binary-to-decimal conversion: decimal <--> binary conversion

Question 12 Chapter 3 Route Aggregation Organization o 100.40.50.0/23 Aggregated Network A.B.C.D/M Organization 1 100.40.60.0/23 ISP-A Organization 2 100.40.70.0/23 Internet Organization 3 100.40.80.0/23 In the figure above, BGP is used for inter-AS routing. ISP-A is then going to advertise a single route to access all the 4 networks at the left side (i.e. networks of Organizations 0 to 3). Q1. What is the aggregated network that is advertised by ISP-A? Write down the 4 parts of the address. different input boxes. i.e. if the address is a.1.2.3.4, write down '1' in the first box, '2' in the second box, etc. • Network Address • Mask: NOTE: Use this link for decimal-to-binary & binary-to-decimal conversion: decimal <--> binary conversion

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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There are 4 routers Router A, B, C and D Router B and D are connected in a network system, RIP is the routing protocol running on the routers, DV(distance vector) algorithm is the routing algorithm for RIP, a new link is added to the system to conect router A and C, will this addition trigger router A to re-compute its DV?
The Routing Information Protocol (RIP) is an intradomain routing based on routing. * link state distance vector path vector none of the above The metric used by is the hop count. * OSPF RIP BGP none of the above
Computer Science IP is a Routed Protocol, just like ICMP and IGMP: whereas RIP, OSPF, BGP are all Routing Protocols, Could you please ustrato the respective roles, interactions and co-working of P4 and TOP 4 v6) with the OSPF and BGP in case of a Router that separates and interconnects Intranet of a large campus to the Internet? You may assume that this Router is one of the multiple Layer-3 devices that the campus has and that this router has three connected LAN interfaces and three connected WAN interfaces. Does this kind of interaction require any specific protocol that is NOT explicitly listed above? If so, which one(s) and why?
4. The Open Shortest Path First (OSPF) protocol is an intra-domain routing protocol based on .... Routing algorithm. A. distance vector B. link state C. path vector D. non distance vector 5. The Routing Information Protocol (RIP) is an intra-domain routing based on ...routing A. distance vector B. link state C. path vector D. distance code 6. When a direct delivery is made, both the deliverer and receiver have the same.... A. routing table B. host ID C. IP address D. Network ID 7. Interior Gateway Protocols (IGPS): handle routing A. Inside autonomous system B. Outside autonomous system C.Insid wide area network D. All of the mentioned
Each active interface of Distance vector gets frequent transmissions of the whole routing table that Distance vector maintains. The link status protocol broadcasts information about the state of a router's own connections to all other routers in the network. Each statement has two ideal examples that show how the Link state and the Distance vector may be utilized in a number of circumstances.
QUESTION 78 Consider the network shown below. Suppose all ASs are running OSPF for their intra-AS routing protocol. Suppose EBGP and IBGP are used for the inter-AS routing protocol. All links in any AS has the same weights AS1 AS3 1b 1a 3b 1ç 110 30 19 За J11 3d AS2 12 114 2d 113. 4b 16 2a 15, 20 2b AS4 a. Router 3c learns about prefix x from which routing protocol? b. Router 3a learns about x from which routing protocol? c. Router 1c learns about x from which routing protocol? d. Router 4b learns about x from which routing protocol? Assuming AS1 and AS2 uses hot potatoes routing What woud be the entry for x in the 2b routing table? What would be the entry for x in the 2d routing table? What would be the entry for x in the 1c routing table? How AS2 can restrict AS1 from routing to X via AS2?
32. Consider the network shown below. Suppose AS3 and AS2 are running OSPF for their intra- AS routing protocol. Suppose AS1 and AS4 are running RIP for their intra-AS routing protocol. Suppose eBGP and iBGP are used for the inter- AS routing protocol. Initially suppose there is no physical link between AS2 and AS4. a. Router 3c learns about prefix x from which routing protocol: OSPF, RIP, eBGP, or iBGP? b. Router 3a learns about x from which routing protocol? c. Router 1c learns about x from which routing protocol? d. Router 1d learns about x from which routing protocol? 3b 3c AS3 3a 1a 4c 1c 1₁ 4b AS4 1d AS1 1₂ 4a 1b X 2a 2c AS2 2b
8. RIP routing protocol belong to A. Exterior Gateway Protocols (EGP) B. Interior Gateway Protocols (IGPS) C. Hierarchical routing protocols D. None of all 9. In RIP routing protocol the periodic timer which controls the advertising of regular update messages is called A. Expiration Timer B. Routing-update timer C. Route-flush timer D. None of all 10. The routing protocol which based on overhead as a routing metric is A. OSPF B. RIP C. EIGRP D. None of all 11. The router which is Joining local areas to backbone area in hierarchical structure of OSPS is called A. Internal router B. Backbone router C. Area Border Router (ABR) D. Autonomous Boundary Router (ASBR) 12. The routing protocol which uses triggered updates (has no periodic updates) is called A. OSPF B. RIP C. EIGRP D. None of all 13. EBGP session in BGP routing is used to A. Used to connect different routers have different AS B. Used to connect different routers have same AS C. Both A and B D. None of all
17. Consider the network shown below. Suppose AS3 and AS2 are running OSPF for their intra-AS routing protocol. Suppose AS1 is running RIP for its intra-AS routing protocol. 1) Router 16 and 1c learns about prefix x from which routing protocol: OSPF, RIP, or inter- AS routing protocol? 2) Router la learns about prefix x from which routing protocol: OSPF, RIP, or inter-AS routing protocol? 3) Once router la learns that x is accessible via Ic as well as 1b, it will put an entry (x, 1) in its forwarding table. Will / be set to l₁ or 1₂? Explain why. 3b 3c 3a AS3 1a 1c 1d AS1 1b 2a AS2 2c 2b
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Q10: RIP is . 1- None of the above 2- Link state protocol 3- Distance vector protocol 4- Exterior protocol Q11: Multi-area OSPF based network has more frequency of shortest Path First calculations 1- True 2- False Q12 In OSPF, the protocol responsible for establishing and maintaining neighbor relationships is called .
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