Why domain name resolution on Red Hat Enterprise Linux switches to TCP from UDP ?

Issue

• Why domain name resolution on Red Hat Enterprise Linux switches to TCP from UDP ?
• While executing a curl command and while the domain name resolution happens, packet capture shows the resolver switches to TCP from UDP. Refer packet number 4 in the below capture

1 0.000000       192.168.194.248       192.168.194.1         DNS      Standard query 0xbee6 A test.redhat.com
2 0.000035       192.168.194.248       192.168.194.1         DNS      Standard query 0x1d1d AAAA test.redhat.com
3 0.003247       192.168.194.1         192.168.194.248       DNS      Standard query response 0xbee6 A test.redhat.com CNAME 
4 0.000338       192.168.194.248       192.168.194.1         TCP      57154 → 53 [SYN] Seq=650790169 Win=29200 [TCP CHECKSUM INCORRECT] Len=0 MSS=1460 SACK_PERM=1 WS=128
5 0.005957       192.168.194.1         192.168.194.248       DNS      Standard query response 0x1d1d AAAA test.redhat.com CNAME