Refer to the exhibit. A network administrator is configuring the PPP link between the routers R1 and R2. However, the link cannot be established. Based on the partial output of the show running-config command, what is the cause of the problem?
IT Exam Items Repository › Category: CCNA › Refer to the exhibit. A network administrator is configuring the PPP link between the routers R1 and R2. However, the link cannot be established. Based on the partial output of the show running-config command, what is the cause of the problem?
Refer to the exhibit. A network administrator is configuring the PPP link between the routers R1 and R2. However, the link cannot be established. Based on the partial output of the show running-config command, what is the cause of the problem?

- The usernames do not match each other.
- The usernames do not match the host names.
- The passwords for CHAP should be in lowercase.
- The username r1 should be configured on the router R1 and the username r2 should be configured on the router R2.
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