euler_hcip

frontend main

bind *:8080

acl web1 path_end -i .png .gif .jpg

use_backend pic if web1

acl web2 url_reg -i \.txt$

use_backend txt if web2

default_backend http_back

backend pic

balance roundrobin

server node1 127.0.0.1:81 check

backend txt

balance roundrobin

server node2 127.0.0.1:82 check

backend http_back

balance roundrobin

server node3 127.0.0.1:83 check

之后重启服务，并确认了服务已正常，然后使用浏览器对“192.168.1.100:8080/test.txt”进行访问，其中192.168.1.100为haproxy的IP地址，浏览器收到以下信息：404 Not Found nginx/1.21.5。结合以上全部信息进行分析，以下哪些是正确的选项？【多选题】

2024-12-01 12:01:30,INFO,User admin logged in.

2024-12-01 12:05:45,ERROR,Failed to connect to database

2024-12-01 12:10:02,INFO,User admin performed action X

2024-12-02 14:15:30,ERROR,Unable to find file: config.txt

2024-12-02 15:01:01,WARN,Disk space running Low.

2024-12-03 09:05:13,INFO,User guest logged in.

2024-12-03 09:10:45,ERROR,Connection timeout to server

2024-12-03 09:15:25,INFO,User guest performed action Y.

2024-12-04 10:25:50,ERROR,Failed to read log file

2024-12-04 10:30:00,WARN,Disk space running low

使用grep对该文件进行内容查找，以下哪些选项是正确的？【多选题】

#!/bin/bash

#Function 1: Computes factorial

factorial(){

if (($$1 <=1)); then

echo 1

else

local prev=$$(factorial $$(($$1-1)))

echo $$(($$1 * $$prev))

fi

}

#Function 2: Checks if a number is prime

is_prime(){

local num=$$1

if (( num <2)); then

return 1

fi

for ((i=2; i*i<=num; i++));do

if (( num%i==0)); then

return 1

fi

done

return 0

}

#Function 3: Generates a sequence and calculates factorial of primes

generate_and_process(){

local sum=0

for ((n=1;n<=$$1;n++)); do

if is_prime $$n; then

local fact=$$(factorial $$n)

sum=$$(( sum + fact ))

fi

done

echo $$sum

}

#Main Script

result=$$( generate_and_process 5)

echo "Result:$$result"

【多选题】

（含图）