These questions deal with the file "access_log" in home/ruizhao/CYBR3350/HW4. This file is a capture of the HTTP accesses for this machine for a period of a year or so. Each line is for an access record like: 199.21 .99. I 08--[14/Dec/2015 : 09: 10:49-0600] "GET /robots.txt HTTP/1 . 1 " 404 10 1 2 "-" "Mozilla/5.0 compatible; YandexBot/3.0; +http:lyandex.com/bots)" Such a record shows at 14/Dec/2015:09:10:49 a request from 199.21.99.108 GET the file /robots.txt using protocol HTTP/1.1 but the server responded with 404 (not found). 4. How many requests were made in 31/Dec/2015? What complete command did you use? 5. How many times did the IP address 157.55.32.61 request files from this server? What complete command did you use