TDC 375-901    2016-04-07 Quiz #2           Student Name:



1. What real world Internet security threat was presented last week?

   ___  a. BGP router TTL=0 ICMP packet amplification

   ___  b. Conficker (mitigated with "sinkholes" and DNS hijacking)

   ___  c. IORC worm (leaked vulnerability discovered by jtk @ depaul.edu)

   ___  d. Vegas TCP state exhaustion



2. Which IPv4 prefix includes the largest number of addresses?

   ___  a. 0.0.0.0/0  (aka 0.0.0.0 with mask 0.0.0.0)

   ___  b. 0.0.0.0/8  (aka 0.0.0.0 with mask 255.0.0.0)

   ___  c. 0.0.0.0/16 (aka 0.0.0.0 with mask 255.255.0.0)

   ___  d. 0.0.0.0/24 (aka 0.0.0.0 with mask 255.255.255.0)



3. If a router interface is assigned 192.0.2.1/24, what is the IPv4
   directed broadcast for the prefix on that interface?

   ___ a. 192.0.2.0

   ___ b. 192.0.2.1

   ___ c. 192.0.2.255

   ___ d. 255.255.255.255



4. Which organization maintains the request for comments (RFC) series?

   ___ a. ACM

   ___ b. ANSI

   ___ c. IEEE

   ___ d. IETF



5. How many bits are allocated for a source address in an IPv6 header?

   ___ a. 32

   ___ b. 64

   ___ c. 128

   ___ d. it varies


 
$Id: quiz02.txt,v 1.1 2016/04/07 20:58:31 jtk Exp $